Question

2. A stone of mass lkg is dropped from height 10m above the ground, and falls speedily under gravity. It's kinetic energy 5m above the ground is equal to​

Answer 1

Below

Step-by-step explanation:

The loss in potential energy (from dropping 5 m) will equal the gain in Kinetic energy

mgh = 1/2 m v^2

m (9.81)(5) = kinetic energy at 5 m <===== you will need to put in the mass

to calculate the value in Joules