A 1.0 kg ball is bounced high in the air. What is its total kinetic energy when it reaches its highest point?

a
30.0 joules
b
0 joules
c
50.0 joules
d
40.5 joules
e
100.0 joules

1 answer

The correct answer is b) 0 joules.

At the highest point, the ball has zero velocity and therefore zero kinetic energy. Its potential energy is at a maximum, equal to the work done against gravity to get it to that height.
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