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Physics
Physics
Problem
A wheel starts from rest and rotates through an angle
θ
\theta
θ
in time
t
t
t
under constant angular acceleration
α
\alpha
α
. If the angular acceleration is increased to
4
α
4\alpha
4
α
, the time taken to rotate through the same angle
θ
\theta
θ
will be a)
t
2
\dfrac{t}{\sqrt{2}}
2
t
b)
t
4
\dfrac{t}{4}
4
t
c)
t
2
\dfrac{t}{2}
2
t
d)
t
2
2
\dfrac{t}{2\sqrt{2}}
2
2
t
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