A horizontal speed-time graph above the time axis represents:
A
Constant speed
B
Constant acceleration
C
Rest only
D
Increasing speed
Correct Answer: Option A — Constant speed
Explanation:
In this situation, Constant speed is obtained by applying the relevant motion concept carefully. The question tests whether the learner can ...
In this situation, Constant speed is obtained by applying the relevant motion concept carefully. The question tests whether the learner can distinguish the required quantity from related ideas and use the stated information without adding unsupported assumptions. The alternatives Constant acceleration, Rest only, and Increasing speed do not satisfy the governing definition, graph interpretation, direction convention, or numerical relationship in this case. In examinations, identify the known quantities, keep SI units consistent, select a positive direction where needed, and apply the appropriate definition or equation. This also checks that the answer has a sensible magnitude and unit.