Question

If two identical cars are traveling at different velocities, which car has the greatest momentum ​

Answer 1

The one with highest velocity

Step-by-step explanation:

The momentum of an object is given by

`p=mv`

where

m is the mass of the car

v is the velocity of the car

In this problem, we have two identical cars: identical means they have same mass, so

`m_1 = m_2 = m`

The momentum of car 1 is

`p_1 = mv_1`

while the momentum of car 2 is

`p_2 = mv_2`

By comparing the two expressions, we see that the car with greatest momentum is the one with highest velocity, since the mass is the same.