Question #6426311Single Choice

Physics

Question

A 5 kg ball is launched horizontally from a 100-meter-high cliff with an initial velocity of 20m/s. After 3 seconds, how much has its gravitational potential energy decreased? (Take g = 10m/s2)

Options

A
    3000 J
B
    2000 J
C
    2750 J
D
    2250 J

Answer & Analysis