What is the mass of a stone moving at a speed of
15 meters/second and having a momentum of
7.5 kilogram·meters/second?

Explanation:

Momentum means the ability or tendency of an atom to continue moving.

The relation between momentum, mass and speed or velocity is as follows.

                       p = m × v

where,   p = momentum

             m = mass of object

             v = velocity of object

It is given that speed of stone is 15 m/s, and momentum is 7.5 kg m/s. Therefore, calculate the mass of a stone as follows.

                     p = m × v

                        =

                        = 0.5 kg

Thus, mass of the stone is 0.5 kg.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.