Question

A $800\text{kg}$ car takes a circular turn of radius $25\text{m}$ with an uniform speed of $36\text{km/h}$. The centripetal force acting upon the car is

• A. $3200\text{N}$
• B. $1750\text{N}$
• C. $1000\text{N}$
• D. $1200\text{N}$

Answer 1

The correct option is A $3200\text{N}$

Given, mass of car $m=800\text{kg}$
Radius of circular turn $\left(r\right)=25\text{m}$
Speed $\left(v\right)=36\text{km/hr}=36\times \frac{5}{18}=10\text{m/s}$

To find centripetal Force: we know that,
$F=m{a}_c=m\frac{v^2}{r}=800\times \frac{(10{)}^2}{25}=3200\text{N}$



Hence option A is the correct answer