The acceleration of an object increases by the force applied to it and decreases based on it's mass.

Explanation:

Force is defined as mass times acceleration.

Mathematically,          F = m × a

where             F = force

                       m = mass

                       a = acceleration

This shows that force is directly proportional to acceleration. So, when greater force is applied then acceleration will also increase.

Whereas acceleration is inversely proportional to mass. So, when there is increase in mass then there will be decrease in acceleration.

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.