f a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 20 m/s?

Answer 1

Given

Vi = 0 m/s {rest}
a = 1.5 m/s^2
Vf = 20 m/s

Vf = Vi + at
t = Vf/a

Vi cancels out

** Plug in and you should get the speed as 13.3 s