Which of the following statements is false?a.For every force, there is an equal and opposite reaction force.b.An externally applied force is needed to change the direction of a moving object.c.Centripetal acceleration acts towards the centre of the circle of motion.d.A body travelling at a constant velocity in a circle has no acceleration.

An object moves in a circular path at a constant speed. Which of the following is true? A. The car’s acceleration is zero because it has a constant speed B. The car’s acceleration is not zero and causes the car to slow down C. The car’s acceleration is not zero and causes the car to speed up D. The car’s acceleration is not zero and causes the change in the direction of the car’s velocity E. None from the above

Assertion (A) The speed of a body in uniform circular motion is constant.Reason (R) In uniform circular motion, the acceleration of the body is constant.Both (A) and (R) are true and (R) is the correct explanation of (A).Both (A) and (R) are true but (R) is not the correct explanation of (A).(A) is true but (R) is false.(A) is false but (R) is true.

Which of the following situations is true and possible?a. If the velocity of a body is zero, then the acceleration can be non-zerob. A body moving at a constant velocity can have accelerationc. The magnitude of distance and displacement are equal in a circular motiond. All of the above

Which of Newton's Three Laws does the following statement satisfy? For every action there is an equal and opposite reaction.

Write any four examples of uniform circular motion.(c) Is uniform circular motion accelerated motion