A small ball of mass 75 g is suspended from a string of length 55 cm and whirled in a circle lying...

A small ball of mass 75 g is suspended from a

string of length 55 cm and whirled in a circle

lying in the horizontal plane. If the string makes an angle of 28◦ with the

vertical, find the centripetal force experienced

by the ball. The acceleration of gravity is

9.8 m/s

2

.

Answer in units of N.