Question

Find the torque acting on a rotating body, if it's angular momentum changes from 5 kgm²/s to 8 kgm/s in 4 seconds.

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Answer 1

Given Information:

Find the torque acting on a rotating body, if it's angular momentum changes from 5 kgm²/s to 8 kgm/s in 4 seconds.

Solution:

We know that,

• $\sf{τ=\frac{\triangle\:L}{ \triangle \: T} }$

Where,

• L denotes distance
• F denotes magnitude

• $\sf{ τ = \frac{L_f - L_1}{T_f - T_1}}$
• $\sf{τ= \frac{8 - 5}{4 - 0}}$
• $\sf{ τ = \frac{3}{4}}$

Therefore, torque acting on a rotating body is 3/4Nm

Answer 2

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Explanation:

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