Question

kayla has a mass of 47.2 kg and when she jogs north on the path, she has 215.6 kg m/s. calculate kayla's speed.

Answer 1

In order to calculate Kayla's speed, we can use the formula for the momentum:

$p=m\cdot v$

Where p is the momentum (in kg m/s), m is the mass (in kg) and v is the speed (in m/s).

So, using p = 215.6 and m = 47.2, we have:

$\begin{gathered} 215.6=47.2\cdot v\\ \\ v=\frac{215.6}{47.2}\\ \\ v=4.57\text{ m/s} \end{gathered}$