Question

When a door is pushed near the edge the torque acting is "τ". If the same force is acting at the middle of the door, the torque acting is ____.

Answer 1

Answer:

The string provides a torque on the flywheel. We have torque as τ=Iα.

Thus

Fr=Iα

or

10×0.2=0.4×α

or

α=5rad/s

2

Thus after 4 seconds we have the angular velocity as

ω=0+5×4

=20rad/s