Question

What is uniform circular motion ? Give two examples which force is responsible for that?

Answer 1

Answer:

Uniform circular motion is when an object moves in circle at a constant(uniform) speed.

a centripetal force is must needed for a uniform circular motion.

1). earth revolving around sun, the gravitational force between earth and sun the centripetal force here.

2). A stone tied to a string and whirled in a cirular motion, the tension of the string is the centripetal force here

Answer 2

Answer:

When a body along with a fixed point on a circular path, such that it changes its direction continuesly, keeping the speed constant, then the motion is said to be uniform circular motion.

Example: i) A car moving along a circular path.

ii) A ball when tied to a stick and rotated.

Centripetal force And Centrifugal forces are responsible for it.