Q. A $500\ kg$ car takes a round turn of radius $50\ m$ with a velocity of $36\ km/hr$. The centripetal force is
A) $250\ N$
B) $750\ N$
C) $1000\ N$
D) $1200\ N$
Explanation
(c) $v = 36\frac{km}{h} = 10\frac{m}{s}\ \therefore F = \frac{mv^{2}}{r} = \frac{500 \times 100}{50} = 1000\ N$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.