Question

4. Two bodies of same masses are placed at height h and 2 h. Compare their gravitational potential energy​

Answer 1

Answer:

Gravitational pot. energy of A : Gravitational pot. energy of B= mgh/2mgh = 1/2=1:2

Answer 2

Explanation:

Here, mass, m=0.06kg,

initial velocity,u=500m/s,

final velocity, v=0m/s,

time taken, t=0.01s

Impulse = mass x change in velocity

=0.06kg×(0−500)m/s

=30kgm/s