When acceleration and average acceleration are equal for moving object?

Define average acceleration.

If acceleration of M is a then acceleration of m is

Give velocity and acceleration at any point for an moving object whose x to t graph is straight line.

For any particle moving with some velocity (vecv) & acceleration (veca) , tangential acceleration & normal acceleration are defined as follows. Tangential acceleration - The component of acceleration in the direction of velocity. Normal acceleration - The component of acceleration in the direction perpendicular to velocity. If at a given instant, velocity & acceleration of a particle are given by . vecc=4hati +3hatj vaca=10hati+15hatj+20hatk Find the tangential acceleration of the particle at the given instant :-

For any particle moving with some velocity (vecv) & acceleration (veca) , tangential acceleration & normal acceleration are defined as follows. Tangential acceleration - The component of acceleration in the direction of velocity. Normal acceleration - The component of acceleration in the direction perpendicular to velocity. If at a given instant, velocity & acceleration of a particle are given by . vecc=4hati +3hatj veca=10hati+15hatj+20hatk Find the normal acceleration of the particles at the given instant :-

The direction of angular acceleration of a body moving in a circle in the plane of the paper is .

Figure shows the total acceleration and velocity of a particle moving clockwise in a circle of radius 2.5 m at a given instant of time. At this instant, Find: (i) the radial acceleration, (ii) the speed of the particle and (iii) its tangential acceleration.

When the average acceleration of the particle becomes instantaneous acceleration ?

Statement-I : When velocity of a particle is zero then acceleration of particle is zero. Statement-II : Acceleration is equal to rate of change of velocity.