A boy sits 2.00 meters from the center of a merry-go-round with an angular speed of 1.40 rad/sec. If the magnitude of the force that maintains the boy's circular motion is 160 N, what is the boy's mass?

0.19 m/s and 0.45 m/s

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.

d) physical means can be used to separate the components of air.

conservation of mass

mass before something happens = mass afterwards