How do i calculate acceleration and the some?
acceleration equals velocity over time remember that velocity is a vector (has direction) so dont mix up the negative and positive signs. velocity should be in meters per second and time should be in seconds. in the end your answer should be in meters per second squared now, to calculate acceleration from free fall, is very easy because there is no initial speed, so there is only the acceleration due to gravity which is -9.801 meters per second squared. to calculate reaction time you need displacement, acceleration, final velocity. you will need to use a kinematic equation in order to find time.
