Two Pendulums of Equal Length L = 0

question 34

Multiple Choice

Two pendulums of equal length l = 0.45 m are suspended from the same point.The pendulum bobs are steel spheres.The first bob is drawn back to make a 35° angle with the vertical.If the first bob has mass 0.25 kg and the second has mass 0.85 kg,how high will the second bob rise above its initial position when struck elastically by the first bob after it is released?

• A)1.7 cm
• B)1.4 cm
• C)2.0 cm
• D)2.3 cm

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