Question

A driver with a mass of 60 kg is driving around a racetrack in uniform circular motion at 60m/s. The radius of the circular racetrack is 100 m. What is the magnitude of the driver'smomentum?

Answer 1

ANSWER:

$L=360000\frac{kg\cdot m^2}{s}$

STEP-BY-STEP EXPLANATION:

Given:

mass = m = 60 kg

velocity = v = 60 m/s

radius = r = 100 m

The angular momentum is given by the following formula:

$L=r\cdot m\cdot v$

Replacing:

$\begin{gathered} L=60\cdot60\cdot100 \\ L=360000\frac{kg\cdot m^2}{s} \end{gathered}$