Question

a freight train moves with a velocity of 18m/s to the North. the mass of the train is 5,000,000 kg. what would have to be the velocity of a 2000 kg car if tge car were to have tge same momentum.

Answer 1

The velocity of the 2000 kg car would have to be 45 m/s in order to have the same momentum as the 5,000,000 kg train.

Step-by-step explanation:

In order for the 2000 kg car to have the same momentum as the 5,000,000 kg train, the product of its mass and velocity must be equal to the product of the train's mass and velocity. So, we can set up the equation:

2000 kg x v = 5,000,000 kg x 18 m/s

Dividing both sides of the equation by 2000 kg, we get:

v = 5,000,000 kg x 18 m/s ÷ 2000 kg

v = 45 m/s