A boy jumps from a wall 3m high. What is an estimate of the change in momentum of the boy when he lands without rebounding?
1 answer:
The answer is D. Because the boy jump 3 high
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1) KE=1/2*m*v^2
1/2*45*40^2
KE=36,000J
2) PE=mgh
45*9.81*30
PE=13243.5J
D. The direction of the force is toward the center of the object's circular path.
Yes it is work because when you throw a ball, you transfer energy to it and it moves.
The organism may become ill or die
It is potential energy because the band is not in movement, th band has the potential to move.
