# Forces of Transport P4

Revision notes which will help you in your exam.

- Created by: Abigail
- Created on: 20-04-12 07:25

First 166 words of the document:

Forces of Transport (P3)

Speed

Speed is measured in metres per second (m/s), kilometres per hours (km/h) or

miles per hour (mph).

To wok out the speed of any moving object we need to know two things:

The distance it travels.

The time taken to travel the distance.

Then calculate the speed of the object using the following equation:

The faster the speed of on object, the greater the distance it travels in a

particular time.

The faster the speed of an object, the shorter the time it takes to travel

a particular distance.

Speed cameras generally take two pictures of a vehicle, one a certain amount

of time after the other. The position of the vehicle in relation to the distance

markings on the road in the two pictures can be used to calculate the speed of

the vehicle, using this formula...

Measuring Acceleration

1

## Comments

No comments have yet been made