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Distance vs Displacement

is it possibl...

Question

is it possible in a straight motion a particles of zero speed and non zero velocity ?explain.

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Solution

As we know that velocity is a vector quantity, as it has both the magnitude (speed) and direction.
The particle at rest will have zero speed and hence will have zero velocity also.
Hence, it is not possible in a straight motion, that a particle have zero speed and non zero velocity.

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Similar questions

Q. Choose the correct option:
i. Accelerated motion means acceleration and velocity have same direction.
ii. It is possible that particle have zero acceleration with non-zero velocity.
iii. When acceleration of the particle is positive, it is under accelerated motion.

Q. Choose the correct option:
i. Accelerated motion means acceleration and velocity have same direction.
ii. It is possible that particle have zero acceleration with non-zero velocity.
iii. When acceleration of the particle is positive, it is under accelerated motion.
iv. It is possible that velocity

v = 0

but acceleration

a \neq 0

.

The average velocity of a particle moving on a straight line is zero in an interval.

Statement 1: It is possible that the instantaneous acceleration is never zero in the interval.

Statement 2: It is possible that the instantaneous velocity is never zero in the interval.

Q. State with reasons, it is possible or impossible for an object to have :
Zero speed and may have non zero velocity

Q. Pick the correct statements:
(a) Average speed of a particle in a given time is never less than the magnitude of the average velocity.
(b) It is possible to have a situation in which

|\frac{d \vec{v}}{d t}| \neq 0 but \frac{d}{d t} = |\vec{v}| = 0

(c) The average velocity of a particle is zero in a time interval. It is possible that the instantaneous velocity is never zero is the interval.
(d) The average velocity of a particle moving on a straight line is zero in a time interval. It is possible that the instantaneous velocity is never zero in the interval. (Infinite accelerations are not allowed).

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