Question

A car and a heavy truck roll down a hill and reach the bottom at the same speed. Compared with the momentum of the truck, the momentum of the car is

A. less.B. the same.C. more.D. None of the above.

Answer 1

A. less

Step-by-step explanation:

The momentum of an object is directly proportional to it mass and velocity. It is the product of mass and velocity of the object. Given as

`Momentum (p) = Mass (m) * Velocity (v)`

So the momentum of car,

`p_(c) = m_(c)* v_(c)`

Momentum of truck,

`p_(t) = m_(t)* v_(t)`

We know that, mass of car is less than that of truck and velocity of the two are same. It is implied that, momentum of car will be less than that of truck.