Question

An object of mass 25kg is falling from the height h=10 m. calculate
a. The total energy of an object at h=10m.
b. Potential energy of the object when it is at h= 4m
c. Kinetic energy of the object when it is at h= 4m
d. What will be the speed of the object when it hits the ground?​

Answer 1

Explanation:

a) E = m*g*h

          =25*9.8*10

         = 2450 J

b) P.E = m*g*h

         = 25*9.8*4

          =980J

c) K.E= 1962J

d) Sorry but i think some data is missing like time or velocity