define acceleration
The rate at which velocity changes
what is acceleration measured in?
m/s^2
What is one equation for calculating acceleration?
a= change in velocity (v-u) / time
What is another way to calculate acceleration?
2as= v^2-u^2
What is always the acceleration of an object that is being dropped from a height on earth?
9.8 m/s^2
Why can the value for acceleration be positive or negative?
it is a vector quantity so it has both direction and magnitude