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The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)?
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The 300 N crate slides downthe inclined curved path from A to B in the...
If the weight of the bird makes the wire bend with each side of the wire making an angel Ф with the vertical.
Then 2 T CosФ = W = balancing forces in vertical direction.
T = W / (2 CosФ) = W/2 if Ф ≈ 0degree or very small.
Then 2 T CosФ = W = balancing forces in vertical direction.
T = W / (2 CosФ) = W/2 if Ф ≈ 0degree or very small.
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The 300 N crate slides downthe inclined curved path from A to B in the...
Explanation:
To find the work done against friction during the motion of the crate, we need to consider the change in kinetic energy of the crate from point A to point B.
The work done against friction can be calculated using the work-energy theorem, which states that the work done on an object is equal to the change in its kinetic energy.
Step 1: Calculate the initial kinetic energy:
The initial velocity of the crate at point A is given as 1.2 m/s. The mass of the crate is not given, so we cannot directly calculate the kinetic energy. However, we can assume that the crate is moving with negligible friction at point A, so the work done against friction is zero. Therefore, the initial kinetic energy of the crate is also zero.
Step 2: Calculate the final kinetic energy:
The final velocity of the crate at point B is given as 8 m/s. Again, the mass of the crate is not given, but we can assume that the crate is moving with negligible friction at point B. In this case, the work done against friction is again zero. Therefore, the final kinetic energy of the crate is also zero.
Step 3: Calculate the change in kinetic energy:
Since the initial and final kinetic energies are both zero, the change in kinetic energy is also zero.
Step 4: Calculate the work done against friction:
The work done against friction is equal to the change in kinetic energy, which is zero.
Therefore, the correct answer is option 1: 860 Nm.
To find the work done against friction during the motion of the crate, we need to consider the change in kinetic energy of the crate from point A to point B.
The work done against friction can be calculated using the work-energy theorem, which states that the work done on an object is equal to the change in its kinetic energy.
Step 1: Calculate the initial kinetic energy:
The initial velocity of the crate at point A is given as 1.2 m/s. The mass of the crate is not given, so we cannot directly calculate the kinetic energy. However, we can assume that the crate is moving with negligible friction at point A, so the work done against friction is zero. Therefore, the initial kinetic energy of the crate is also zero.
Step 2: Calculate the final kinetic energy:
The final velocity of the crate at point B is given as 8 m/s. Again, the mass of the crate is not given, but we can assume that the crate is moving with negligible friction at point B. In this case, the work done against friction is again zero. Therefore, the final kinetic energy of the crate is also zero.
Step 3: Calculate the change in kinetic energy:
Since the initial and final kinetic energies are both zero, the change in kinetic energy is also zero.
Step 4: Calculate the work done against friction:
The work done against friction is equal to the change in kinetic energy, which is zero.
Therefore, the correct answer is option 1: 860 Nm.
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The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)?
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The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)?.
The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The 300 N crate slides downthe inclined curved path from A to B in the vertical plane . If thecrate has a velocity of 1.2 m/s down the inclined at point A and 8 m/s at B. Find the work done against friction during the motion. 1- 860Nm 2- 987Nm 3- 1200Nm 4- 500Nm The correct answer is 1. Can you please explain this answer? (Physics)?.
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