Physics Problem Help?

Question

A softball player swings a bat, accelerating it from rest to 2.6 rev/s in a time of 0.20 s . Approximate the bat as a 0.90-kg uniform rod of length 0.95 m, and compute the torque the player applies to one end of it.

Answer 1

Mass of bat is  kg.

Uniform rod length is .

Bat swings with an accelertion of 2.6 rev/s in a time of 0.20 s.

Find the torque.

Torque , where I  is the moment of inertia and is the acceleration.

Angular velocity is rad/s.

Angular acceleration is rad/s².

.

Moment of inertia of rod of length is .

.

Substitute  and  in .

.

Torque required to produce the acceleration is  N-m.