Gravity is a force between any two objects with mass. why doesn't a person feel a gravitational force between him/herself and another person? a)a person doesn't exert a gravitational force. b)the two gravitational forces cancel each other out. c)the gravitational forces of people is so small it is overshadowed by that of earth. d)there are so many people we are actually balanced by all the different gravitational forces.

c)the gravitational forces of people is so small it is overshadowed by that of earth.

Explanation:

The gravitational force between two objects is given by:

where

G is the gravitational constant

m1 and m2 are the masses of the two objects

r is the distance between the two objects

From the formula, we see that the gravitational force depends on the masses of the objects: since the mass of the Earth ( is much much larger than the average mass of one person (80-100 kg), then the gravitational force exerted by the Earth on a person is also much much larger than the gravitational force between two people.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.