A Machine Part Is Vibrating Along the X-Axis in Simple

question 48

Multiple Choice

A machine part is vibrating along the x-axis in simple harmonic motion with a period of 0.27 s and a range (from the maximum in one direction to the maximum in the other) of 3.0 cm. At time t = 0 it is at its central position and moving in the +x direction. What is its position when t = 55 s?

• A) x = -0.43 cm
• B) x = -0.51 cm
• C) x = +0.51 cm
• D) x = -1.3 cm
• E) x = -1.4 cm

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