AVERAGE ACCELERATION

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

Position || Displacement || Distance || Velocity || Average Velocity || Acceleration

Position Vector|| Instantaneous Velocity|| Speed Acceleration|| Average Velocity|| Average Speed ||Turning Point

A particle is moving in a circular path of radius r with constant speed v . At a particular instant particle is at point A and then it reaches a point B which is diametrically opposite to point A . Average acceleration during this interval is .

A car moves around a curve at a constant speed. When the car goes around the arc subtending 60^(@) at the centre, then the ratio of magnitude of instantaneous acceleration to average acceleration over the 60^(@) arc is :

A particle starting from rest has a constant acceleration of 4 m//s^2 for 4 s. It then retards uniformly for next 8 s and comes to rest. Find during the motion of particle (a) average acceleration (b) average speed and (c) average velocity.

The v-t graph for a particle moving along x-axis is shown in the figure, find (a) Average velocity in the interval 0 to 8 s. (b) Average speed in the interval 0 to 8 s. (c) Average acceleration in the interval 0 to 4 s. (d) Instantaneous acceleration at t = 2.5 s.

A particle starts moving from rest at t=0 with a tangential acceleration of constant magnitude of pi m//s^(2) along a circle of radius 6 m. The value of average acceleration, average velocity and average speed during the first 2 sqrt(3) s of motion, are respectively :

Ten seconds after an electric fan is turned on, the fan rotates at 300 rev/min. Its average angular acceleration is