contestada

Determine the mechanical energy of this object: a 1-kg ball sits on a 10-meter high cliff.

a. 98 J

b. 10 J

c. 980 J

d. The ball isn't moving, so the mechanical energy is zero.

Respuesta :

Mechanical energy = mass x acceleration due to gravity x height 
                               =     1x9.8x10 = 98J

the answer is A

hope this helps