Question

a stone of mass 200g falls from a height 5m with a velocity of 1.5m/s
what is the energy

Answer 1

Answer:

5.225 J

Explanation:

K.E. of the stone = 1/2 m v² = 1/2 ×200/1000 × 1.5²

= 0.225 J

P.E. of the particle = mgh = 200/1000 × 10× 5

= 5 J

Therefore,Total mechanical energy = 5.225 J