Suppose an ice skater is moving on the surface of a frozen lake at constant velocity. What is true about the external (outside) forces acting on the skater?
A) There are none.
B) There could be some but they all cancel out.
C) Gravity can be ignored.
D) The all are perfectly horizontal.

Question

Quizplus · Accepted Answer

Since the skater is moving at a constant velocity, according to Newton's first law of motion, the net external force acting on the skater must be zero. This means that any external forces present are balanced or cancel each other out.

Suppose an Ice Skater Is Moving on the Surface of a Frozen