A car of mass 1500 kg goes round a circular curve of radius 50m at a speed of 40 ms‾¹. The magnitude of the centripetal force on the car is ?

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A. 4.8 x 104 N
B. 4.8 x 10³ N
C. 1.2 x 10³ N
D. 1.2 x 10² N

Correct Answer:

Option A = 4.8 x 104 N

Explanation

Centipetal force of the car = ma = (MV)²/r
= (1500 x 40 x40)/50
= 48000 = 4.8 x 104 N

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