Asked by physics
the maximum height a typical person can jump from a crouched start is about 60cm. By how much does the gravitational potential energy increase for a 72kg person in such a jump? Where does this energy come from?
I know the formula for gravitational potential energy is U=mgh. I just don't know what to plug in =/
I know the formula for gravitational potential energy is U=mgh. I just don't know what to plug in =/
Answers
Answered by
Damon
72 * 9.81 * 0.60 in Joules
It comes from the kinetic energy at liftoff
It comes from the kinetic energy at liftoff
Answered by
silanaks
prove the law of conservation of energy in the case of a sliding body?
Answered by
Jamaica
1. Given: m=72 kg; g (constant)=9.8 m/s^2; h= 60cm= .60m
2. Use the gravitational potential energy formula: U=mgh.
3. solve:
U=mgh
U=(72 kg)(9.8 m/s^2)(.60m)
U=423.36 kg m/s^2
2. Use the gravitational potential energy formula: U=mgh.
3. solve:
U=mgh
U=(72 kg)(9.8 m/s^2)(.60m)
U=423.36 kg m/s^2
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