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

1. 250 N
2. 750 N
3. 1000 N
4. 1200 N

Correct answer: 1000 N

Solution

The centripetal force is given by F = mv²/r. Converting velocity to m/s: 36 km/h = 10 m/s. Substituting values: F = (500 × 10²) / 50 = 1000 N.

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