Question

what is velocity formula used in gravitational potential energy

Answer 1

hope this will help you

Answer 2

Answer:

al speed =0

final speed =v m/s

distance travelled =h

acceleration due to gravity =g m/s^2

using the formula v^2-u^2 =2gh

we can find the final speed of the body after reaching the ground.

v^2-0^2=2gh

v=✓(2gh)=✓(2g×u^2/2g)=u

so the projection speed u is equal to the speed of the body on returning to the ground