State the fundamental law of electrostatics

According to this law, the force exerted between two point charges

i) is directly proportional to the product of their strengths.

ii) is inversely proportional to the square of the distance between them. and

iii) is inversely proportional to the absolute permittivity of the surrounding medium.

This is known as Coulomb's Law.

the answer would be a

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.