Particles (Mass of Each = 0

question 75

Multiple Choice

Particles (mass of each = 0.40 kg) are placed at the 60-cm and 100-cm marks of a meter stick of negligible mass. This rigid body is free to rotate about a frictionless pivot at the 0-cm end. The body is released from rest in the horizontal position. What is the magnitude of the initial linear acceleration of the end of the body opposite the pivot?

• A) 15 m/s²
• B) 9.8 m/s²
• C) 5.8 m/s²
• D) 12 m/s²
• E) 4.7 m/s²

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