Is it possible, by lifting a load of mass m = 5 kg to a height of h = 2 m, to perform work A = 150 J?

Full work when lifting a load can be calculated using the formula:

A = F * S, where F is the force applied when lifting a load to overcome gravity (F = Ft = m * g, where m is the mass of the load being lifted (by the condition m = 5 kg), g is the acceleration of gravity (coonst, g = 10 m / s2)); S is the height to which the load was lifted (S = h = 2 m).

Let’s do the calculation:

A = F * S = m * g * h = 5 * 10 * 2 = 100 J.

Answer: When lifting a load, it is impossible to perform work of 150 J, since the total work of lifting a load is 100 J.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.