omgitkey1223
contestada

A book with a mass of 1.2 kg sits on a bookshelf. If it has a gravitational
potential energy of 50 J, how high is the shelf? The acceleration of gravity is
9.8 m/s2
A. 1.2 m
B. 4.3 m
C. 5.9
D. 2.7 m

Respuesta :

blackwidowwsj

I'm sorry, I just saw this. I hope I'm not too late.

GPE = mass * gravity * height

height = GPE/(mass * gravity)

height = 50/(1/2 * 9.8)

height = 10.2041 Meters

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