A merry-go-round accelerates from rest to 0.68 rad/s in 24
s.
Assuming the merry-go-round is a uniform disk of radius 7 m and
mass 31000 kg, calculate the net torque required to accelerate
it.
As we nw that
Torque = I*alpha
= (0.5*m*r^2)*(w/t)
= 0.5*31000*7^2*(0.68/24)
= 21519.1667 N.m
Step Moment of Inertia of disc = MR^2 /2 = (1/2)
x31000x7x7
Step2 Angular acceleration = ? -?o/t = .68/24
Step3 Torque = Moment of Inertia x Angular acceleration
Step4 =(1/2) x31000x7x7x (.68/24) N-m
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