A) 250 N
B) 750 N
C) 1000 N
D) 1200 N
Correct Answer: C
Solution :
The centripetal force required for a car (mass m) to take a sharp turn of radius r with velocity v is |
\[F=\frac{m{{v}^{2}}}{r}\] |
Given, \[m=500\text{ }kg,\] |
\[v=36\text{ }km/h=36\times \frac{5}{18}=10\,m/s\,,\,r=50\,m\] |
Hence, \[F=\frac{500\times {{(10)}^{2}}}{50}=1000\,N\] |
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