1) The magnitude of the velocity of a particle is equal to its speed.
2) The magnitude of average velocity of a particle in an interval is equal to its average speed in that interval.

3) It is possible to have a situation in which the speed of a particle is never zero but the average speed in an interval is zero.

4) It is possible to have a situation in which the speed of a particle is zero but the average speed is not zero.

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Only 1 is true

2 and 3 are true

1 and 3 are true

1 and 4 are true

answer is A.

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Detailed Solution

The magnitude of the velocity of a particle is equal to its speed.

It is possible to have a situation in which the speed of a particle is zero but the average speed is not zero.

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