Use the work energy relationship to explain why swinging the arms can increase jumping height and why just standing with your arms straight up does not. once you leave the ground, why can't jump height be improved?

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

b. a lightning bug, plug of grass, and a worm

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