The speed of a passenger car is 2 times the speed of a truck, and its mass is 4 times
| September 27, 2021 | education
The speed of a passenger car is 2 times the speed of a truck, and its mass is 4 times less than that of a truck. Compare the pulse modules of the cars.
The momentum of any body is equal to the product of the body’s mass by its velocity.
P1 = m1 * V1; P2 = m2 * V2, where m1 is the mass of a truck, V1 is the speed of a truck, m2 is the mass of a passenger car; V2 is the speed of a passenger car.
According to the initial conditions:
V2 = 2V1, m1 = 4m2.
Р1 / Р2 = m1 * V1 / (m2 * V2) = 4m2 * V1 / (m2 * 2V1) = 4/2 = 2.
Answer: The momentum of a truck is 4 times that of a car.
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