Inside of a Train a Ball of Weight W Is

question 20

Multiple Choice

Inside of a train a ball of weight W is hanging by a light wire at rest from the ceiling. The wire makes an angle θ with the ceiling, as shown in the figure. Which one of the following conditions must be true about the tension T in the wire?

• A)T sin θ = W
• B)T cos θ = W
• C)T tan θ = W
• D)T = W
• E)T = ma

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