Laws of Motion - Result Question 61

61. A $500 kg$ car takes a round turn of radius $50 m$ with a velocity of $36 km / h$. The centripetal force is

[1999]

(a) $250 N$

(b) $750 N$

(c) $1000 N$

(d) $1200 N$

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Answer:

Correct Answer: 61. (c)

Solution:

  1. (c) Centripetal force $=\frac{m v^{2}}{r}=\frac{500 \times(10)^{2}}{50}$ $=1000 N \quad[\because 36 km / hr=10 m / s]$