Forces and Inertia :: Discussion


4.On the application of a constant torque, a wheel is turned from rest through 400 radians in 10s. Find the angular acceleration.
A.6 rad/s2
B.4 rad/s2
C.2 rad/s2
D.8 rad/s2
Answer:  Option  D
Explanation:

 θ=400rad
ω_0=0, t = 10s, α = ?
θ=ω0 t+1/2 αt2
400 = 0+1/2 α102
α = 8 rad/s2.

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Published by:Michael Daani

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