Question

Which of the following situations is possible?
a) An object can have acceleration, but constant velocity.
(b) The velocity of an object may be zero but acceleration is not zero.
(c) Distance and the magnitude of displacement are equal in circular motion.
(d) Average speed and the magnitude of average velocity are always equal in circular motion.​

Answer 1

Answer:

a) An object can have acceleration, but constant velocity.

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Answer 2

Answer:

a) Not possible. At constant velocity acceleration is zero.

b) Possible. When we throw a ball upward, at topmost point it's velocity is zero but not acceleration.

c) No. In circular motion, distance travelled is 2πr but displacement is 0

d) Not possible. Velocity= displacement/time

and displacement is 0 for circular motion.