Objects with masses of 135 kg and a 435 kg are separated by 0.500 m. find the net gravitational force exerted by these objects on a 38.0-kg object placed midway between them.

The net gravitational force on the mass is

Explanation:

We have by Newton's law of gravity the force of attraction between masses

Applying vales we get

Force of attraction between 135 kg mass and 38 kg mass is

Force of attraction between 435 kg mass and 38 kg mass is

Thus the net force on mass 38.0 kg is

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.