An object with zero velocity accelerates at 10m/s2. find its average velocity during the first 15 seconds

average-velocity
zero-velocity

#1

an object with zero velocity accelerates at 10m/s2. find its average velocity during the first 15 seconds

Answer:

Average velocity is equal to (Vf + Vi)/2

Vf = final velocity Vi = initial velocity

Vo = 0 m/s
a (acceleration) = 10 m/s^2
t = 15 s

Vf = Vo + at
Vf = 0 m/s + (10m/s^2)(15s)
Vf = 0 m/s + 150 m/s
Vf = 150 m/s

therefore

Average velocity = (150 m/s + 0m/s)/2
Average velocity = (150 m/s)/2

Average velocity = 75 m/s