Question

A 15 kg object has a momentum of 150 kg-m/s north. What is the object's

velocity?
O A. 135 m/s
O B. 2,250 m/s
O C. 0.1 m/s
O D. 10 m/s

Answer 1

10 m/s

Step-by-step explanation:

divide 150 by 15

Answer 2

`\boxed {\boxed {\sf D. \ 10 \ m/s}}`

Step-by-step explanation:

Momentum can be found by multiplying mass by velocity.

`p=mv`

If we rearrange this formula for velocity (v), then the formula becomes:

`(p)/(m)=(mv)/(m)`

`(p)/(m) =v`

We have to divide the momentum by the mass. The momentum is 150 kg*m/s and the mass is 15 kilograms.

`p=150 \ kg*m/s\\m=15 \ kg`

Substitute the values into the formula.

`(150 \ kg *m/s)/(15 \ kg) =v`

Divide. Note that the kilograms (kg) will cancel each other out.

`10 \ m/s=v`

The velocity of the object is 10 meters per second.