Force is interaction which means that force in direction in which SUV is moving is equal to the force in opposite direction.

But you were probably thinking about *momentum* which is product of mass and velocity. So if small car and SUV were traveling at same velocity v but in opposite directions then you would have:

`p_(SUV)=m_(SUV)v` and `p_(compact)= m_(compact)v.` Hence, SUV would have greater momentum `p_(SUV).`

But, if SUV has twice the mass of the compact and compact is traveling at 2 times greater speed their momentums would be equal:

`p_(SUV)=2m_(compact)v_(SUV) = m_(compact) cdot v_(SUV) = p_(compact)`

Posted on

## We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

- 30,000+ book summaries
- 20% study tools discount
- Ad-free content
- PDF downloads
- 300,000+ answers
- 5-star customer support

Already a member? Log in here.

Are you a teacher? Sign up now