Question

If you go from 75m/s to 55m/s in 10 seconds what is your acceleration? SHOW YOUR WORK, YOUR ANSWER, AND GIVE CORREOT UNITS.

Answer 1

Answer: the acceleration should be -2 m/s2.

Explanation: here the initial velocity is given as 75m/s i.e. vi

and final velocity is given as 55m/s i.e. vf

and time is 10s.

the formula of acceleration is a = vf - vi / t

by the following formula a = 55 - 75 / 10

= -20/10

a = -2 m/s2