# A compact car, mass 650 kg, is moving at 100 km/hr toward the south. How do you find the magnitude and direction of its momentum? A second car, with a mass of 2175 kg, has the opposite momentum. What is its velocity?

##### 1 Answer

Feb 6, 2017

Let East direction be

Velocity of compact car of mass

Converting in SI units we get

Velocity of compact car

Momentum

Inserting values we get

Momentum

Direction of momentum is

Second car has opposite momentum

Its velocity is