## May 17, 2020

(For all Top Exams)

Video – 1
Kinematics – 1

Statics –

Study of bodies when not in motion

Kinematics –

Study of bodies when in motion but without considering the forces and the causes of motion

Dynamics –

Study of motion of bodies while considering the forces

Rest and motion

Motion in one Dimension

Motion in 2 Dimensions

Motion in 3 Dimensions

Distance and Displacement

Distance is the actual distance traveled by a body

Displacement is the shortest / straight line distance covered by a body

Speed and Velocity –

Speed is distance covered in one second

Velocity is displacement covered in one second

Speed = d / t ……. Velocity = S / t

Average speed and instantaneous speed

Average speed = TOTAL distance / Total time

Instantaneous speed is exactly speed at that point/moment of time

Average velocity and Instantaneous velocity –

Average Velocity = TOTAL displacement / Total time

Instantaneous Velocity is exactly velocity at that point/moment of time

Uniform motion in a straight line

Position time graph

Velocity time graph

Position time graph

Velocity time graph