Question

A pendulum consisting of a massless
string of length 20 cm and a tiny bob
of mass 100 g is set up as a conical
pendulum. Its bob now performs 75 rpm.
Calculate kinetic energy and increase in
the gravitational potential energy of the
bob. (Use a = 10)
​

Answer 1

View 1st image than 2

hope it will help u. if yes then like my answer please