Question

A car of mass $1500kg$ rounds a curve of radius $250m$ at $90km/hr$. Calculate the centripetal force acting on it.

Answer 1

Given, $m=1500kg$
$r=250m$
$v=90km/hr=\frac{90\times 1000}{60\times 60}=25m/s$
Centripetal force $F=\frac{m{v}^2}{r}$
$=\frac{1500\times {\left(25\right)}^2}{250}=3750N$