Solutions:
According to the question, potential energy at the maximum height = initial kinetic energy
= 1 / 2 mv2 = 1 / 2 × 0.20 × 20 × 20
= 40J
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20m/s-1 Calculate the maximum potential energy it gains as it goes up.
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20m/s-1 Calculate the maximum potential energy it gains as it goes up.