Cart a and cart b are traveling in the same direction on a straight track. cart a is moving at 9.25 m/s and cart b is moving at 7.15 m/s. the mass of cart a is 72.0 kg and the mass of cart b is 55.0 kg. cart a catches up to and collides with cart b. after they collide, cart a slows down to 6.15 m/s. find the final speed of cart b.

The speed of cart B is 11.21 m/s.

Explanation:

Given that,

Speed of cart A = 9.25 m/s

Speed of cart B = 7.15 m/s

Mass of cart A = 72.0 kg

Mass of cart B = 55.0 kg

Speed of card A after collision = 6.15 m/s

We need to calculate the speed of cart B

Using conservation of momentum

Put the value into the formula

Hence, The speed of cart B is 11.21 m/s.