A long perfectly level, frictionless bowling alley, over 2000 meters long, is built by a group of students as a class project. The center just touches the earth near their school and the ends of the
Alley extend into outer space. A bowling ball released at one of the ends, starts rolling towards the center of the alley and will continue moving
A) until it strikes the pins at the far end and stops.
B) forever.
C) for a while but slows to a stop before reaching the pins.

Question

Quizplus · Accepted Answer

In a frictionless environment, an object in motion will continue moving indefinitely unless acted upon by an external force. Since the alley is frictionless and extends into space, the bowling ball will continue moving forever.

A Long Perfectly Level, Frictionless Bowling Alley, Over 2000 Meters