Inside of a Train a Ball of Weight W Is

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