In a collision between a huge SUV and a small compact car, the SUV exerts a larger force on the compact than the compact exerts on the SUV. T or F?

Expert Answers

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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)`

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