What is the formula to find PE and KE?

PE stands for Potential Energy. It is the stored energy in an object due to its position with respect to some reference. It is expressed in Joules.

P. E = m * g * h OR P. E. = mgh

m - mass of the body

g - acceleration due to gravity

h - height attained due to the body's displacement.

K. E. stands for Kinetic Energy. It is the energy possessed by a body due to its motion.

K. E = 1/2 mv² where m = mass of the body; v = velocity with which the body is moving.