Question

a 2 kg cart has a momentum of 16 kg m/s. what is its velocity? 0.125 m/s 32 m/s 18 m/s 8 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 the formula

We can rewrite the formula as $v=\frac{p}{m}$.

Step3: Substitute values

Given $p = 16\ kg\cdot m/s$ and $m = 2\ kg$, then $v=\frac{16\ kg\cdot m/s}{2\ kg}$.

Step4: Calculate the velocity

$v = 8\ m/s$.

Answer:

D. 8 m/s