When an average velocity of a particle becomes its instantaneous velocity ?

Explain instantaneous velocity and discuss how it can be determined from x to t graph.

Are average speed and average velocity are same? If not explain why? (AS_(1))

Statement-I : A particle moves in a straight line with constant acceleration. The average velocity of this particle cannot be zero in any time interval. Statement-II : For a particle moving in straight line with constant acceleration, the average velocity in a time interval is (u+v)/(2) , where u and v are initial and final velocity of the particle of the given time interval.

A particle starts from rest with constant acceleration. The ratio of space-average velocity to the time average velocity is :-

Assertion: When a particle moves with constant velocity its average velocity, its insttantaneous velocity and its speed are all equal in magnitude. Reason: If the average velocity of a particle moving on a straight line is zero in a time interval, then it is possible that the instantaneous velocity is never zero in the internal.

Assertion: Average speed of a particle in a given time interval is never less than the magnitude of the average velocity. Reason: The magnitude of the velocity (instantaneous velocity) of a particle is equal to its speed.

If velocity of a particle is given by v=(2t+3)m//s . Then average velocity in interval 0letle1 s is :

A man moves in x-y plane along the path shown. At what points is his average velocity vector in the sam direction as his instantaneous velocity vector. The man starts from point P .

Assertion :- The displacement always equals the product of the average velocity and the time interval. Reason :- The average velocity always equals the mean value of the initial and final velocities.