Question

A 14 Newton object is released from a height of 10m just before it hits the ground its kinetic energy in Joule is:
4j
400j
320j
0

Answer 1

I think the answer to this question be 140 J
Weight =mass ×g. ....... (1)
si unit of mass= newton
Kinetic energy = m×g×h
=14×10. (force =m×g)
=140joule