Question

How much momentum does a car of mass 1,881 kg have if it travels at a constant speed of 6.9 m/s?

Answer 1

Given,

The mass of the car, m=1881 kg

The speed of the car, v=6.9 m/s

The momentum of an object is given by the product of the mass of the object and its velocity.

Thus the momentum of the car is given by,

`p=mv`

On substituting the known values,

`\begin{gathered} p=1881*6.9 \\ =12.98*10^3\text{ kg}\cdot\text{ m/s} \end{gathered}`

Thus the momentum of the car is 12.98×10³ kg·m/s