A 500 kg car takes a round turn of radius 50 m with a velocity of 36 km/hr. :The centripetal force is
Correct answer: B. 1000 N
- A. 250 N
- B. 1000 N
- C. 750 N
- D. 1200 N
Explanation
The correct centripetal force is calculated by converting the car's speed to m/s, determining the centripetal acceleration, and then multiplying by the car's mass. Option B is correct because it accurately follows these steps. Options A, C, and D are incorrect due to errors in calculation or unit conversions.Fcentripetal = (mv2)/R;v = (36 * 5/18) m/s Fcentripetal = (500 * (36 * 5/18)2) / 50= 1000 N
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About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
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