JAMB Physics 1995 Question 5

Question 5

Motion

When a ball rolls on a smooth level ground, the motion of its centre is

  1. A.translational
  2. B.oscillatory
  3. C.random
  4. D.rotational
Show the answer and explanation

Answer: A (translational)

Explanation

A rolling ball spins about its centre, but the centre itself just moves forward in a straight line. Straight-line movement of a point is translational motion.