A cart moves along a straight track such that its velocity decreases uniformly from…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A cart moves along a straight track such that its velocity decreases uniformly from +12 m/s to +4 m/s in 4.0 s. Which of the following best describes the cart’s acceleration during this interval?
(a) Increasing in magnitude and positive
(b) Constant and positive
(c) Constant and negative
(d) Decreasing in magnitude and negative