Question

which of the statements is not true about uniform circular motion?

a. the velocity of a particle at any instant in uniform circular motion is tangential to the circular path.

b.the centripetal force is responsible for change in direction of a particle.

c.the velocity and acceleration vectors are perpendicular to each other.

d. if a stone tied to the end of a string revolves in a circular path and the string suddenly break, the stone continuous moving in a circular motion

Answer 1

Ummm... I think the option c) is incorrect because tangential acceleration responsible for the change in velocity 

Answer 2

Answer:4 option is correct

Explanation:

Because if string is break at instant it will not be in circular motion it goes is straight path