A body falling from a certain height, at the moment of contact with the ground, has an impulse

A body falling from a certain height, at the moment of contact with the ground, has an impulse P = 100kgm / s and kinetic energy Ek = 200J. Find body weight?

Initial data: P (body impulse at the moment of contact with the ground) = 100 kg * m / s; Ek (kinetic energy of the body at the moment of contact with the ground) = 200 J.

The mass of the body is determined from the formula for calculating the kinetic energy: Ek = 0.5 * m * V ^ 2 = 0.5 * m * V * V = 0.5 * P * V, whence V = 2Ek / P.

Let’s make a calculation: V = 2 * 200/100 = 4 kg.

Answer: Body weight is 4 kilograms.