What is the mass of a car if 4500N of force is used to accelerate it at a rate of 3.0m/s?

Explanation:

The mass of the car can be found by using the formula

f is the force

a is the acceleration

From the question we have

We have the final answer as

Hope this helps you

the answer is b i think

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.