- Messages
- 59
- Reaction score
- 18
- Points
- 8
THANKYOU!!I think the total kinetic energy of the girl remains constant.Because no external forces act except for the weight and the jumping action(which in turn creates an upward force greater than the weight ( so girl moves up). Therefore,
Resultant is constant.
But kinetic energy is affected by velocity which has direction.so when girl moves up the velocity becomes (+) and when she falls (-) and at the top point zero.
Hope this helps <3 <3