Discuss how displacement is represented on a velocity - time graph.

Statement I : A particle moving with uniform acceleration has its displacement proportional to the square of time. Statement II : If the motion of a particle is represented by a straight line on the velocity -time graph its acceleration is uniform.

What does the slope of a velocity-time graph represent?

Discuss how adaptation is related to evolution.

Discuss how a ballistic pendulum is used to find the velocity of a bullet.

A ball is thrown vertically upward. For the motion of the ball till it returns to ground, draw the:- velocity vs time graph.

Displacement x and time t, in a rectiIinear motion of a partical are reIated as t = sqrt(x)+3 . Here x is measured in metre and t in second. Find the displacement of the partical when its velocity is zero.

How can you represent (i) motion with uniform velocity, (ii) motion with uniform acceleration and (iii) motion with uniform retardation in a velocity time graph?

A ball is thrown vertically upward. Draw its (i) velocity -time graph (ii) acceleration -time graph.