# Motion Navpreet Kang
Get Started. It's Free Motion ## 8. types of motion

### 8.1. Rectilinear motion, uniforrm motion,non uniform and circular motion

8.1.1. Distance can only be positive but Displacement can be positive, negative or zero.

8.1.1.1. Distance is path dependent whereas displacement is path independent.

### 8.3. Rectilinear motion

8.3.1. Circular or Rotational motion

8.3.1.1. Periodic and non periodic motion

## 9. speed/velocity

### 9.1. Velocity is vector

9.1.1. speed and velocity S.Iunits are m/s

### 9.3. Their SI unit is m/s.

9.3.1. Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. Put another way, speed is a scalar value, while velocity is a vector

### 9.5. velocity has magnitude and direction

9.5.1. Speed is scaler and velocity is vector.

### 9.7. avg speed

9.7.1. avg velocity

### 9.9. average speed= total distance/total time

9.9.1. total displacement /total time = avg.velocity

## 10. acceleration

### 10.2. The rate of change in velocity w.r.t. time.

10.2.1. It is a vector quantity.

10.2.2. SI UNIT.:m/s^2

### 10.3. important points

10.3.1. starts from rest, initial velocity u= 0

10.3.2. an object comes to rest/car brakes applied, final velocity, v= 0

### 10.4. a= v-u/t

10.4.1. acceleration due to gravity is 'g' and the value of g can be 9.8m/s2 or 10m/s2

10.4.1.1. when body falls/drops u = 0

10.4.1.2. when body reaches to maximum height,v=0

10.4.2. SI unit of acceleration - m/s2

10.4.2.1. Aceleratioon = v-u/t

## 12. The three most common types of motion graphs are velocity vs. time graphs and displacement vs. time graphs.

### 12.1. position/distance/displacement/x- time graph

12.1.1. slope- speed/velocity