A41 g ball rolls around a 64-cm-diameter l-shaped track at 55 rpm. what is the magnitude

0.44 N

Explanation:

The net force (centripetal force) acting on the ball is:

where

m = 41 g = 0.041 kg is the mass of the ball

is the angular velocity

is the radius of the track

First we need to convert the angular velocity into rad/s:

And now we can calculate the magnitude of the force:

Part a)

Part b)

Part c)

Explanation:

Part a)

As we know that cylinder is rolling without slipping

So we have

now we have

now we know that translational kinetic energy is given as

Part b)

Now for rotational kinetic energy we know that

Part c)

Total kinetic energy is given as