Question

A car accelerates from rest to a velocity of 5 meters/second in 4 seconds. What is its average acceleration over this period of time?
A.
Its acceleration is 1.25 meters/second.
B.
Its acceleration is 5 meters/second.
C.
Its acceleration is 0.8 meters/second.
D.
Its acceleration is 1.25 meters/second2.
E.
Its acceleration is 20 meters.

Answer 1

average acceleration = (final velocity - initial velocity) / time