Railways Exam > Railways Questions > A force of 20 Newton acts on a body of mass ...
Start Learning for Free
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum is
- a)100 Ns
- b)80 Ns
- c)25 Ns
- d)60 Ns
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Chan...
Change in momentum = force x time = 20 x 5 = 100 Ns
View all questions of this test
Most Upvoted Answer
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Chan...
Understanding Momentum Change
Momentum is defined as the product of an object's mass and its velocity. The change in momentum (Δp) can be calculated using the formula:
Δp = F × t
where:
- F = Force applied (in Newtons)
- t = Time duration for which the force is applied (in seconds)
Given Data
- Force (F) = 20 Newtons
- Mass (m) = 20 kg (not directly needed for momentum change calculation)
- Time (t) = 5 seconds
Calculating Change in Momentum
1. Substituting Values:
- Δp = 20 N × 5 s
2. Performing the Calculation:
- Δp = 100 Ns (Newton-seconds)
Conclusion
The change in momentum of the body is 100 Ns, which corresponds to option 'A'.
Why Mass is Not Needed for This Calculation
- In this specific calculation, the mass of the object is not required because we are directly calculating momentum change using force and time.
- If we needed the final velocity or to verify the acceleration, the mass would be crucial.
Key Takeaway
- The change in momentum provides valuable insight into how force affects an object's motion, demonstrating the relationship between force, time, and momentum change effectively.
Momentum is defined as the product of an object's mass and its velocity. The change in momentum (Δp) can be calculated using the formula:
Δp = F × t
where:
- F = Force applied (in Newtons)
- t = Time duration for which the force is applied (in seconds)
Given Data
- Force (F) = 20 Newtons
- Mass (m) = 20 kg (not directly needed for momentum change calculation)
- Time (t) = 5 seconds
Calculating Change in Momentum
1. Substituting Values:
- Δp = 20 N × 5 s
2. Performing the Calculation:
- Δp = 100 Ns (Newton-seconds)
Conclusion
The change in momentum of the body is 100 Ns, which corresponds to option 'A'.
Why Mass is Not Needed for This Calculation
- In this specific calculation, the mass of the object is not required because we are directly calculating momentum change using force and time.
- If we needed the final velocity or to verify the acceleration, the mass would be crucial.
Key Takeaway
- The change in momentum provides valuable insight into how force affects an object's motion, demonstrating the relationship between force, time, and momentum change effectively.
Attention Railways Students!
To make sure you are not studying endlessly, EduRev has designed Railways study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Railways.
|
Explore Courses for Railways exam
|
|
Top Courses for RailwaysView all
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer?
Question Description
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer?.
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways.
Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A force of 20 Newton acts on a body of mass 20 kg for 5 seconds. Change in its momentum isa)100 Nsb)80 Nsc)25 Nsd)60 NsCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Railways tests.
|
|
Explore Courses for Railways exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup