Question

3. Work and Conservation of Energy:Calculate the height of a building if 20,000 J energy is required to 200 kg of water from a wellto a tank on the top of the building.of lift

Answer 1

Work = mgh,        where m = mass, g = acceleration due to gravity, h = height

Let g ≈ 10 m/s²,   mass = 200 kg

2000 J = 200 * 10 * h

200 * 10 * h = 2000

h = 2000/(200* 10)

h = 1

The height of the building is 1 m.