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D. 0 J
Answer: B. 2.45 J
Wnet = ΔEk = Ek,f − Ek,i
A pendulum with mass 500 g is attached to the ceiling. It is pulled up to point A, height = .5 meter from the equilibrium position (B). Neglecting air resistance, how much work is done on the pendulum bob when it reaches point B?
A. 250 J
B. 2.45 J
C. 2450 J
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answered1 year ago