Box on rotating disc

Question

A bar is fastened to a rotating disc and is pushing a small box along the edge of the disc. When the box reaches the edge of the disc, it slides off. How can we determine the box's pathway as is slides off of the disc?

Answer 1

Anything in motion stays in motion in a straight line when no net force (it this case, friction) is acting on it. Therefore, in continues tangent to the circle (perpendicular to its radius)

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