Question

A vehicle starting from rest accelerates for 5 sec to a velocity of 15m/s calulate the acceleration of the vehicle

Answer 1

Answer:An easy way to remember how to solve acceleration problems is to remember the units for acceleration: meter per square second, or m/s^2

Since the car starting from rest it’s initial velocity must be 0 m/s, so the change in velocity is simply 15 m/s. Doing so in 5 seconds,

acceleration = change in velocity/change in time

a = (v final - v initial)/(t final - t initial),

therefore,

a = (15–0)/(5–0) = 15/5 = 3 m/s^2

Explanation:

Answer 2

Answer:

a = 3 m/sec²

Explanation:

u = 0 m/sec (Vehicle is starting for rest. So initial velocity will be zero)

v = 15 m/sec (Given)

t = 5 sec

We know that,

v = u + at

15 = 0 + a x 5

5a = 15

a = 3 m/sec²