Practice question
Question
A runner moves at a constant speed of 8m/s for 25s. What is the distance covered by the runner?
Explanation
For constant speed, distance x=vt. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 200 m as the result, so option A is correct.