Question

if KE of body at the surface of ground is 2000 J then it's mechanical energy is
2000 J
1000 J​

Answer 1

Answer:

2000J

Explanation:

Given,

Kinetic energy(K.E) = 2000J

To Find :-

Mechanical Energy.

Formula Required :-

Mechanical Energy = Kinetic Energy + Potential Energy

M.E = K.E + P.E

Solution :-

Potential Energy is zero on the surface of the ground.

∴ P.E = 0

M.E = K.E + P.E

= 2000J + 0J

= 2000J

M.E = 2000J

∴ Mechanical Energy = 2000J.