Question

A ball falls off a table and reaches the ground in 1 s. Assuming (acceleration due to gravity) g = 10 m/s square , calculate its speed on reaching the ground and the height of the table

Answer 1

v=u+at
v=0+10
v=10m/s

v²-u²=2gh
10²-0²=2×10×h
100=20h
h=100÷20
h=5m