(a) what force does a trampoline have to apply to jennifer, a 45.0-kg gymnast, to accelerate her straight upward at 7.50 m/s2? (b) does your answer to part (a) depend on whether jennifer is in the process of landing on the trampoline (downward velocity) or being propelled off the trampoline (upward velocity)?

a) 778.95 N

b) No

Explanation:

a) The trampoline will provide the force which is opposite to the force that Jennifer will provide by jumping on it

Force the trampoline has to apply is 778.95 N

b) Jennifer has to provide or the trampoline has to provide this amount of force in order to reach her desired height and acceleration. Her position in the process of the jump does not matter.

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.

power out to power in less than 100%