Per NCERT §3.10, in UNIFORM circular motion, what stays constant and what changes?
ABoth v and direction constant
BDirection constant; speed changes
CSpeed constant; direction of v changes
DBoth v and direction change
Answer & Solution
Correct answer: C. Speed constant; direction of v changes
NCERT §3.10: 'uniform' means speed |v| is constant; direction of v continually changes (tangent to circle).
Related questions
The time for one full revolution is the:Centripetal acceleration has constant magnitude but is not a constant vector because its:Newton named the centre-directed acceleration:The acceleration in uniform circular motion always points:A car goes round a roundabout at a steady 20 km/h. Its motion is:For a fixed launch speed, range is greatest at a launch angle of:The horizontal distance from launch to where the projectile lands back at the same level iTime of flight is twice the time to reach maximum height because the path is: