Velocity || Instanteneous and Average || Distance : Path length

Speed || Instanteneous and Average|| Acceleration|| Examples

Distinguish between average velocity and instanteneous velocity. If the velocity does not change from instant in to instant, will the average velocities be different for the different intervals?

Assertion : Distance is a scalar quantity. Reason : Distance is the length of path traversed.

Assertion : Magnitude of average velocity is equal to average speed, if velocity is constant. Reson : If velocity is constant, then there is no change in the direction of motion.

Assertion: In rectilinear motion when velocity is positive distance travelled increases and when velocity is negative distance travelled decreases. Reason: Distance is length of the path covered by a particle.

Assertion: Distance is a scalar quantity. Reason: Distance is the length of path traversed.

A particle is moving with a constant speed in a circular path. Find the ratio of average velocity to its instantaneous velocity when the particle rotates an angle theta =((pi)/(2)) .

A bullet of mass 'm' fired with a velocity 'v' into a fixed log of wood and penetrates a distance 's' before coming to rest. Assuming that the path of the bullet in the log of wood I horizontal, the average resistance offered by the log of wood is

Define : average velocity