Describe three ways in which you used energy earlier today.

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?

What is the quantity which is measured by the area occupied below the velocity- time graph?

What is the potential energy possessed by a rock of mass 4kg projected to a height of 2m (g=10m/s2)