A61-kg acrobat must jump high and land on his brother's shoulders. to accomplish this, he leaps from a crouched position to a height where his center of mass is 1.20 m above the ground. his center of mass is 400 mm above the ground. part a: what is the average force exerted on him by the ground during the jump? part b: what is his maximum speed?

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explanation:

you can cut your hand off if your not

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j