PHYSICS · Single correct · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line
Problem
An object moves along the positive x–axis. Under which condition is its acceleration said to be negative?
(a) Its velocity along the +x–axis increases with time.
(b) Its velocity along the +x–axis decreases with time.
(c) Its velocity remains constant along the +x–axis.
(d) Its speed decreases irrespective of its direction of motion.