A force that always acts perpendicular to a body's velocity changes:

  1. neither
  2. its speed but not its direction
  3. its direction but not its speed
  4. both speed and direction
Answer

C) its direction but not its speed

A perpendicular force does no work, so kinetic energy (speed) stays the same. SLO P-11-B-10 · Understanding

Physics MCQ · More Circular and Rotational Motion MCQs · Practise