A 212 kg bumper car is traveling 8.00 m/s when it rear ends a second 196 kg bumper car traveling at 6.75 m/s. If the cars get stuck together, how fast are they traveling after the collision?

7.40m/s

Explanation:

The masses of the cars with their respective initial velocities are;

Since the two car stuck after collision, they all move with a common velocity in the same direction.

Let the velocity at which the two cars will be moving after collision be V.

From the conservation of momentum, in a closed system, momentum before collision is equal to momentum after collision.

Mathematically,

By substitution, we obtain;

Dividing through by 408, we obtain

Therefore,v=7.40m/s

that would be because of both gravity and friction. so     c

the rearrangement of particles in a physical change. hope this