When is an object in motion considered to be a point object ?
What is meant by uniform motion ? Can you think of an example of a body in uniforim motion ?
Why is the motion of an athlete moving along the circular path an accelerated motion ?
If the displacement of a body is proportional to the square of the time elapsed, what type of motion does the body possess ?
Draw velocity-time graphs for the following situations
$(i)$ When body is moving with uniform velocity.
$(ii)$ When body is moving with variable velocity, but uniform acceleration.
$(iii)$ When body is moving with variable velocity, but uniform retardation.
$(iv)$ When body is moving with a variable velocity and variable acceleration.