Explain that a particle can have zero average velcoity but not zero average speed.

Explain that a can have zero average velcoity but not zero average speed.

What is the significance of average velocity or average speed?

Assertion : On a curved path, average speed of a particle can never be equal to average velocity. Reason : Average speed is total distance travelled divided by total time. Whereas average velocity is, final velocity plus initial velocity divided by two.

Are the magnitudes of average velocity and average speed equal?

Which of the following statements is incorrect? (i) Average velocity is path length divided by time interval. (ii) In general, speed is greater than the magnitude of the 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.

A particle having almost zero mass and exactly zero charge is

A : If speed of a particle is never zero than it may have zero averag speed. R : The average speed of a moving object in a closed path is zero.

Can a body have a. Zero instantaneous velocity and yet be accelerating? b. Zero average speed but non-zero average velocity? c. Negative acceleration and yet be speeding up? d. Magnitude of average velocity be equal to average speed ?