What work needs to be done to lift a bucket of water from a well 12 m deep? The weight of a bucket of water is 8 kg.

Initial data: h (well depth) = 12 m; m (mass of a bucket with water) = 8 kg.

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

Since the lifting of the bucket is vertical (cosα = 1), the work of lifting the bucket with water can be calculated by the formula: A = F * S = m * g * h.

Let’s calculate: A = 8 * 10 * 12 = 960 J.

Answer: D) To lift a bucket of water, it is necessary to perform work of 960 J.