The angular momentum of a wheel changes from 2L to 5L in 3 seconds what are the magnitudes of torque acting on it?
- L/3
- L/2
- L
- None of these
Explanation
Step 1: Recall the formula for torque
Torque (τ) is related to the change in angular momentum (L) over time (t) by the formula: τ = ΔL / Δt
Step 2: Calculate the change in angular momentum
ΔL = 5L - 2L = 3L
Step 3: Calculate the torque
τ = ΔL / Δt = 3L / 3 = L
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