In a lab experiment a light flexible string is wrapped around a solid cylinder with mass m = 9.50 kg and radius r. the cylinder rotates with negligible friction about a stationary horizontal axis. a mass m = 3.00kg is tied at the free end of the string and release and the mass moves downward. find the magnitude of the acceleration of the object of mass m.

Explanation:

Given

Mass

Net Force is equivalent to

with tension T in the string    

For mass

For cylinder

I for solid cylinder is

thus

Substitute the value of T we get

2b2t

explanation:

2b2t

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.