Answer:
7.4 J
Explanation:
m = mass of the ball = 0.160 kg
h = height gained by the ball = 4.70 m
g = acceleration due to gravity = 9.8 m/s²
U = Potential energy gained by the ball
Potential energy gained by the ball is given as
U = mgh
W = work done by student
Using conservation of energy
W = U
W = mgh
W = (0.160) (9.8) (4.70)
W = 7.4 J
