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
2
Answer:
L
Explanation:
(dL/dt) = [(5L - 2L)/3] = L
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Answered by
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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