Question

A 4.0 -kg block is related from rest 50 m above ground when it has fallen 20m it's kinetic every is approximately

Answer 1

Answer:

Explanation:

The mass of the block, m = 4 kg

The total height of the block from the ground = 50 m

When the block has only covered 20 m, the height above the ground,

h = 50 m - 20 m

h = 30 m