What work does the gravity force acting on a ball weighing 50 g do when it falls from a height of 1.5 km.

Given: m (the mass of the dropped ball) = 50 g (in SI m = 0.05 kg); h (the height from which a given ball began to fall) = 1.5 km (SI h = 1500 m).

Constants: g (acceleration due to gravity) ≈ 10 m / s2.

The work that the force of gravity did when the given ball fell, we define by the formula: A = Ft * S = ΔEp = m * g * h.

Let’s make a calculation: A = 0.05 * 10 * 1500 = 750 J.

Answer: When a given ball falls, gravity has done a work of 750 J.