MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Instantaneous Speed

If magnitude ...

Question

If magnitude of average speed and average velocity over a time interval are same, then

A

The particle must move zero acceleration

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

The particle must move with non-zero acceleration

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

The particle must be at rest

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

The particle must move in a straight line without turning back

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A The particle must move zero acceleration
For a particle moving in straight line the speed and velocity are same. So the particle must move in a straight line without turning back.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The velocity-time plot for a particle moving on a straight line is shown in the figure.
Figure

(a) The particle has a constant acceleration.
(b) The particle has never turned around.
(c) The particle has zero displacement.
(d) The average speed in the interval 0 to 10 s is the same as the average speed in the interval 10 s to 20 s.

Q. Which of the following statements are incorrect?
(i) Average velocity is path length divided by time interval.
(ii) In general, average speed is greater than the magnitude of the average velocity.
(iii) A particle moving in a given direction with a non-zero velocity can have zero speed.
(iv) The magnitude of average velocity is the average speed.

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).

Q. Acceleration-time graph of a particle moving in a straight line is as shown in figure. At time

t = 0

, velocity of the particle is zero. Find the average acceleration in a time interval from

t = 6

t = 12

Q. Assertion :A student performed an experiment by moving a certain block in a straight line. The velocity position graph is as shown in the figure. The particle has zero velocity after infinite time. Reason: When a particle is at its maximum position in rectilinear motion its velocity must be zero.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Time, Average Speed and Velocity

PHYSICS

Watch in App

explore_more_icon

Explore more

Instantaneous Speed

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon