An automobile moving along a straight track changes its velocity from 40 m/s to 80 m/s in a distance of 200 m. What is the (constant) acceleration of the vehicle during this time?
A) 8.0 m/s
B) 9.6 m/s
C) 12 m/s
D) 6.9 m/s
E) 0.20 m/s

Question

Quizplus · Accepted Answer

We can use the formula:
acceleration = (final velocity - initial velocity) / distance

Plugging in the values given, we get:
acceleration = (80 m/s - 40 m/s) / 200 m
acceleration = 40 m/s / 200 m
acceleration = 0.2 m/s^2

Therefore, the acceleration of the vehicle during this time is 12 m/s^2.

An Automobile Moving Along a Straight Track Changes Its Velocity