#### Transcript of Kinematics for 8th Class

**Motion is Relative**

**Distance and Displacement**

Rate of Motion

**Uniform Motion**

Velocity & Time

Graph

**Acceleration**

Length of the

actual path

taken to go from source to destination.

Length of the

straight line

joining the source to the destination or in other words the length of the

shortest path.

Speed

Velocity

Distance traveled per unit of time

Displacement traveled per unit of time

When an object covers equal distance in every time interval, it is said to be having uniform motion.

Distance to Time Graph

Acceleration

= Rate of change of velocity

Uniform and

Non-Uniform Acceleration

**Equations**

Distance

Displacement

Distance

Distance

Displacement

A body is said to be accelerating if there is a change in velocity.

Uniform Acceleration

Non-Uniform Acceleration

1st Equation of Motion

2nd Equation of Motion

3rd Equation of Motion

Consider

Initial velocity = v

Final velocity = u

Sample Problem

Superman covers 60 miles between 2 p.m. and 4 p.m. How fast was he going at 3 p.m.?

Sample Question

Harry porter drive a distance of 1 km at 16 km/h. Then he drive an additional distance of 1 km at 32 km/h. What is his average speed?

Spider man travels up a hill at a constant speed of 37 km/h and returns down the hill at a constant speed of 66 km/h. Calculate his average speed for the whole trip?

Sample Problem

Full transcript