Question

A car moves in circular track with a constant speed. Which of the following statements is correct? And Explain? Answers: A) It has a constant velocity B) It requires a force which points in the radial direction C) It does not need any force D) It requires a force which points in the tangential direction

Answer 1

option (A) is wrong because the direction of car changes therefore velocity is changing.

option (B) is correct

The net force acting upon a car is directed

towards the center of the circle. The net force is said to be an inward or

centripetal force.

Without such an inward force, an object would continue in

a straight line, never deviating from its direction.

option(C) is wrong because to move in circular motion, there must need centripetal force.

option(D) is wrong the direction of force is inward direction not tangential direction.

hence the correct answer is option (B)