Question

3.2.2 quiz: momentum
question 9 of 10
a 15 kg object has a momentum of 150 kg·m/s north. what is the objects velocity?
a. 0.1 m/s
b. 135 m/s
c. 10 m/s
d. 2,250 m/s

Explanation:

Step1: Recall momentum formula

The formula for momentum is $p = mv$, where $p$ is momentum, $m$ is mass and $v$ is velocity. We need to solve for $v$.

Step2: Rearrange formula for velocity

Rearranging $p = mv$ gives $v=\frac{p}{m}$.

Step3: Substitute values

We know $p = 150\ kg\cdot m/s$ and $m = 15\ kg$. Substituting these values into $v=\frac{p}{m}$, we get $v=\frac{150\ kg\cdot m/s}{15\ kg}$.

Step4: Calculate velocity

$v = 10\ m/s$.

Answer:

C. 10 m/s