Question

A ball thrown vertical upwards direction rise up to a hight 'h' and come back to the position of its start calculate(a) the total distance travelled by the ball (b) the displacement of the ball (c) the velocity of the ball at the height'h'

Answer 1

a= 2*h.
b = 0
c= 0
because at highest point it has only potential energy Kinetic energy will be zero at h. so velocity will be also zero.