Velocity is define as the time rate taken for a change in acceleration
Question 2 is because the passengers have inertia, which is a tendency to resist change in motion
"Force of friction between the crate and the floor of the truck" is the one force among the choices given in the question that <span>causes the crate to accelerate forward. The correct option among all the options that are given in the question is the third option or option "c". I hope the answer helps you.</span>