In a shadow play, the actors are behind a translucent screen and the audience only sees their two-dimensional shadows on the screen. Assume that the lighting is such that the dimensions of objects are undistorted. In a certain play, a witch is stirring a caldron by moving a spoon, held vertically, in a horizontal circle with a radius of 20 cm, making one revolution every 2.4 s. What is the maximum acceleration of the spoon seen by the audience? A)0.35 m/s² B)1.1 m/s² C)1.4 m/s² D)0.48 m/s² E)0.52 m/s²

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Quizplus · Accepted Answer

The maximum acceleration in circular motion is given by the formula a = ω²r, where ω is the angular velocity and r is the radius. First, calculate ω = 2π/T, where T = 2.4 s. Then, a = (2π/2.4)² * 0.2 m = 1.4 m/s².

In a Shadow Play, the Actors Are Behind a Translucent