Physics, asked by bala321, 1 year ago

The angular momentum of a wheel changes from 2L to 5L in 3 seconds. What is the
magnitude of the torque acting on it
A) L
B) L/2
C) L/3
D) L/5
with explanation

Answers

Answered by kavinuuu
2

Answer:

L

Explanation:

(dL/dt) = [(5L - 2L)/3] = L

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Answered by RehanAk73
1

Answer:

OPTION A IS CORRECT

L

Explanation:

Since the direction of torque is opposite to rotation, it opposes the initial rotation. As such, the magnitude of angular momentum changing from 2L to 3L implies: Average Torque = Constant Torque = -5L/5 sec = -L/sec.

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