Question

A body of mass 1 kg is thrown vertically upwards from ground with speed 40 m/sec. Then which of these statements are correct. (g = 10 m/s?) Ay at half the maximum height, its potential energy is 400 J and its kinetic energy is 400 J (B) at half the maximum height, its potential energy is 200 J and its kinetic energy is 200 J (C) after 6 seconds its kinetic energy is 200 J and potential energy is 600 J (D) after 6 seconds its kinetic energy is 600 J and potential energy is 200 J​

Answer 1

Answer:

20 J

Loss of energy= 21

mv 2 −mgh=20J