A car weighing 900 kg moves along a straight section of the highway at a speed of 72 km / h.

A car weighing 900 kg moves along a straight section of the highway at a speed of 72 km / h. What is the momentum of a car?

The body momentum is determined by the formula:
P = m * v, where
p – body impulse,
m – body weight (in kg),
v – body speed (in m / s).

Our car weighs 900 kg and moves at a speed of 72 km / h (or 20 m / s).

Thus, the momentum of the car will be:

P = 900 * 20 = 1800 kg * m / s

Answer: the impulse of a moving vehicle is 1,800 kg * m / s.