How much weight can a load be lifted to a height of 2 m, having done a work of 10 J.

Given:

h = 2 meters – the height to which the load must be lifted;

A = 10 Joules – work that can be done when lifting a load.

It is required to determine P (Newton) – the weight of the load that can be lifted to a height h by performing work A.

Since it is not specified in the problem statement, we assume that the load is lifted uniformly (that is, at a constant speed). Then, the weight of the cargo can be determined from the following formula:

A = P * h, from here we find that:

P = A / h = 10/2 = 5 Newton.

Answer: the weight of the load that can be lifted is 5 Newtons