Class 9 Exam > Class 9 Questions > An iron sphere of mass 10 kg has the same dia...
Start Learning for Free
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?
- a)acceleration
- b)momenta
- c)potential energy
- d)kinetic energy
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
An iron sphere of mass 10 kg has the same diameter as an aluminium sph...
Explanation:
The question states that an iron sphere and an aluminum sphere, with different masses, are dropped simultaneously from a tower. When they are at a height of 10 m above the ground, they have the same value for a certain quantity.
When objects fall freely near the surface of the Earth, they experience a constant acceleration due to gravity. This acceleration is denoted by the letter "g" and is approximately equal to 9.8 m/s².
Acceleration:
The acceleration due to gravity is the same for all objects near the surface of the Earth, regardless of their mass or composition. Therefore, both the iron sphere and the aluminum sphere will experience the same acceleration as they fall towards the ground. This is why the correct answer is option 'A'.
Momenta:
The momentum of an object is given by the product of its mass and velocity. Since the spheres are dropped from rest, they will have different velocities at any given height. Therefore, they will have different momenta when they are at a height of 10 m above the ground.
Potential Energy:
The potential energy of an object is given by the product of its mass, the acceleration due to gravity, and its height above a reference level. Since the mass and height are the same for both spheres, their potential energies will be different because they have different masses.
Kinetic Energy:
The kinetic energy of an object is given by the formula ½mv², where m is the mass of the object and v is its velocity. Since the spheres are dropped from rest, their velocities will be different at any given height. Therefore, their kinetic energies will also be different when they are at a height of 10 m above the ground.
In summary, when the iron and aluminum spheres are at a height of 10 m above the ground, they have the same acceleration. However, their momenta, potential energies, and kinetic energies will be different due to their different masses.
The question states that an iron sphere and an aluminum sphere, with different masses, are dropped simultaneously from a tower. When they are at a height of 10 m above the ground, they have the same value for a certain quantity.
When objects fall freely near the surface of the Earth, they experience a constant acceleration due to gravity. This acceleration is denoted by the letter "g" and is approximately equal to 9.8 m/s².
Acceleration:
The acceleration due to gravity is the same for all objects near the surface of the Earth, regardless of their mass or composition. Therefore, both the iron sphere and the aluminum sphere will experience the same acceleration as they fall towards the ground. This is why the correct answer is option 'A'.
Momenta:
The momentum of an object is given by the product of its mass and velocity. Since the spheres are dropped from rest, they will have different velocities at any given height. Therefore, they will have different momenta when they are at a height of 10 m above the ground.
Potential Energy:
The potential energy of an object is given by the product of its mass, the acceleration due to gravity, and its height above a reference level. Since the mass and height are the same for both spheres, their potential energies will be different because they have different masses.
Kinetic Energy:
The kinetic energy of an object is given by the formula ½mv², where m is the mass of the object and v is its velocity. Since the spheres are dropped from rest, their velocities will be different at any given height. Therefore, their kinetic energies will also be different when they are at a height of 10 m above the ground.
In summary, when the iron and aluminum spheres are at a height of 10 m above the ground, they have the same acceleration. However, their momenta, potential energies, and kinetic energies will be different due to their different masses.
Free Test
FREE
| Start Free Test |
Community Answer
An iron sphere of mass 10 kg has the same diameter as an aluminium sph...
Yes, because acceleration of an object due to gravity, when under free fall, is not affected by it's mass as it's equation states and all bodies of varying mass and with same shape and size, fall with the same rate towards the Earth irrespective of their mass.
g=(GM)/R^2
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer?
Question Description
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer?.
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer?.
Solutions for An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same?a)acceleration b)momentac)potential energyd)kinetic energyCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Test: The Fundamental Unit of Life- Case Based Type Questions- 1
Test | 10 questions
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup