Question

Two thin rectangular sheets (0.20 m 3 0.40 m) are identical. In
the fi rst sheet the axis of rotation lies along the 0.20-m side, and in the
second it lies along the 0.40-m side. The same torque is applied to each
sheet. The fi rst sheet, starting from rest, reaches its fi nal angular velocity
in 8.0 s. How long does it take for the second sheet, starting from rest, to
reach the same angular velocity?

Answer 1

Explanation:

ans is 24 second

applying formula

Torque= I× angular acceleration