Question

Writing to Learn: In a certain video game a cursor bounces back and forth horizontally across the screen at a constant rate. Its distance d from the center of the screen varies with time t and hence can be described as a function of t. Explain why this horizontal distance d from the center of the screen does not vary according to an equation d= a sin bt, where t represents seconds. You may find it helpful to include a graph in your explanation

Answer 1

a sin curve has a sinusoidal velocity, goes to 0 at the ends and is maximum at the center.
This has a constant speed, so square wave velocity.

Answer 2

I still don't quite understand this.