A car with a mass of 2000 kg travels to the right at a speed of 80 m/s. A truck travels to the left at a speed of 20 m/s and has a mass of 7000 kg. Which one of the two has the greatest momentum? Cannot tell without the impulse

The truck

Both have the same momentum

The car

The car has the greatest momentum, 160000 [kg*m/s]

Explanation:

In order to solve this problem we must remember that linear momentum is defined as the product of mass by Velocity. In this way we have the following equation

P = m*v

where:

P = lineal momemtum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

Therefore we must calculate the momentum for both the truck and the car.

For the car

Pc = 2000*80

Pc = 160000 [kg*m/s]

For the Truck

Pt = 7000*20

Pt = 140000 [m/s]

The car has the greatest momentum

it becomes positively charged by charging it

a straight line sloped