Question

a bucket of water of mass 10kg is raised from rest through a height of 10m and placed on a platform.how much does it potential energy increase?what was the work done against gravity?

Answer 1

Question

Potential energy change: $E_{potential} = mg\Delta h = 10 \cdot 9.8 \cdot 10 = 980 \, \mathrm{J}$ .

The wok done against gravity: $A = mg\Delta h = 10 \cdot 9.8 \cdot 10 = 980 \, \mathrm{J}$ .

Answer: 980 J.