Vectors and Forces
Your average speed for the walk is:
total distancetotal time = 84 = 2ms-1
(since it takes 52 = 2.5s walking North and 3 2 = 1.5s walking South).
Vector quantities are commonly encountered in ph
Work Energy & Power
What happens if the object moves at right angles to the force,
or in the opposite direction?
If a force acts on a body and causes it to move, then the force is doing work.
If you are d
Why Students Lose Marks: AS Motion Questions
This Factsheet analyses students real answers to exam questions on motion in a straight line. By the end of this Factsheet, you should be more confident