NEET Physics Circular Motion Dynamics MCQ Question
A car of mass 1500 kg moves on a circular track of radius 50 m at a constant speed of 10 m/s. What is the magnitude of the static frictional force required to maintain this circular motion?
3000 N
1500 N
300 N
150 N
Correct Answer
Detailed Explanation
The centripetal force required is given by f_c = mv^2/R. Substituting m = 1500 kg, v = 10 m/s, and R = 50 m, we get f_c = 1500 * 10^2 / 50 = 3000 N. This force is provided by static friction.
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