Practice question
Question
What is the key difference between the velocity and acceleration vectors in uniform circular motion?
Explanation
Velocity v=v₀+at. Starting from rest, v=at. With a=(ax i+ay j), magnitude |v|=t√(ax²+ay²) per NCERT vector addition. Substituting ax, ay, t gives |v| equal to They are perpendicular. Hence option B is correct.