Jeff, a snowboarder who weighs 1000 N, is practicing on a trampoline for an upcoming competition. As Jeff bounces straight up off the trampoline, his speed is 6.26 m/sec. When he reaches the top of his bounce, his potential energy is approximately:

Potential energy

Explanation:

Given data

Weight of the person = 1000 N

Mass of the person =

Speed = 6.26

Kinetic energy is given by

Put the values in above formula we get

When the person reach top point then at this point the velocity is zero & kinetic energy at top point is equals to the potential energy.

Therefore potential energy

28. evolution

29. environment, survive, offspring  

explanation:

e/c, where e is its total energy