Question

which of the following v - t time graphs shows the motion of an object changing direction (lt 2 - dok1)? a b c d

Explanation:

Step1: Understand velocity - direction relation

Velocity is a vector. A change in direction is indicated by a sign - change in velocity.

Step2: Analyze each graph

In graph A, the velocity starts positive and then becomes negative, crossing the time - axis. This means the object changes direction. In graph B, velocity is always positive (it speeds up and then moves at a constant positive velocity), so no direction change. In graph C, velocity is constant and positive, no direction change. In graph D, the nature of the graph is not clear from the provided image but assuming it follows normal patterns like the others shown, if it doesn't cross the time - axis, there is no direction change.

Answer:

A.