contestada

How much potential energy does a 40-N medicine ball gain when it is lifted 5 m? Select one:
a. 20 J
b. 100 J
c. 200 J
d. 1,000 J

Respuesta :

olemakpadu
PE = mgh

Where  m= mass,  g = acceleration due to gravity, h = height

But here: mg = weight = 40N,  h = 5m

PE = (mg)*h = 40 * 5 = 200 J    C.