Rotational Motion Question 101

Question: A constant torque of 1000 N m turns a wheel of moment of inertia 100 kg m2 about an axis passing through its centre. Starting from rest, its angular velocity after 3s is :-
Options:

A)1 rads1

B)5 rads1

C)10 rads1

D)15 rads1

Show Answer

Answer:

Correct Answer: D

Solution:

We know that T=Iα1000=200×αα=5rad/s2 .

Now we know ω=ωo+αt, and ωo=0ω=5×3=15 rads1



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