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what is the % power thats left if i drop a ball of m = 1 kg from the height of h = 1 m at earths gravity g = 9.82 ms/s. and the same values except h = 0.54 m

physics
Guest Mar 2, 2017
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"what is the % power thats left if i drop a ball of m = 1 kg from the height of h = 1 m at earths gravity g = 9.82 ms/s. and the same values except h = 0.54 m"

 

It's not clear to me exactly what you are after, but:

 

Potential energy is given by:  PE = mgh

Kinetic energy is given by:  KE = (1/2)mv^2     where v is velocity

PE + KE = constant

 

Also, note that power is rate of change of energy, so should your question really be expressed in terms of power?

Alan  Mar 2, 2017

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