Circular motion: Angular displacement: When a particle is in circular motion about an axis or centre, the angle described by the radius about the axis

Displacement – time graph: 1. The slope of displacement – time graph gives velocity. A and B are two points on the graph and AC

Vertical motion: 1. When a body is dropped from a height under gravity and neglecting the resistive forces, then, initial velocity of the body (u)

1. Prove v = u + at: Let us consider a particle is moving with uniform velocity u. Then it accelerates uniformly with a and

Speed: The distance travelled by a particle per unit time is called speed. Speed is a scalar quantity. Speed = . If s distance travelled

Distance: The length of the actual path travelled by a particle between the initial and final position of it in a given interval of time