In a Shadow Play, the Actors Are Behind a Translucent

question 57

Multiple Choice

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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Definitions:

Trapezius

A large, triangular muscle extending over the back of the neck and shoulders that moves the head and shoulder blade.

Distinct Muscles

Specific, individual muscles that are easily identifiable and separate from others in the body's muscular system.

Dorsal

Pertaining to the back side of the body in humans, or the upper side in quadrupeds and other animals.

Ventral

Pertaining to the front or anterior of the body; opposite of dorsal, which refers to the back or posterior.