Question

A block (mass = 1.7 kg) is hanging from a massless cord that is wrapped around...

A block (mass = 1.7 kg) is hanging from a massless cord that is wrapped around a pulley (moment of inertia = 1.0 x 10-3 kg·m2), as the figure shows. Initially the pulley is prevented from rotating and the block is stationary. Then, the pulley is allowed to rotate as the block falls. The cord does not slip relative to the pulley as the block falls. Assume that the radius of the cord around the pulley remains constant at a value of 0.045 m during the block's descent. Find (a) the angular acceleration of the pulley and (b) the tension in the cord.

Use equation of motion for the block and pulley using Newton’s law of motion to find the angular acceleration and tension as shown below,***********************************************************************************************
This concludes the answers. If there is any mistake or omission, let me know immediately and I will fix it....

Earn Coins

Coins can be redeemed for fabulous gifts.