A hockey puck slides across a frictionless surface at a constant speed in a straight line
PHYSICS · Single correct · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion
Problem
A hockey puck slides across a frictionless surface at a constant speed in a straight line. Which of the following statements about the forces acting on the puck is most accurate?
(a) A forward force equal in magnitude to the puck’s weight must act on the puck to offset the downward pull of gravity.
(b) The net force on the puck is zero.
(c) The puck experiences a backward frictional force that is balanced by an equal forward push, keeping its speed constant.
(d) The puck continues moving because a small forward net force acts on it to maintain its motion.