A 10-kg sign is held by two ropes as shown in the figure. What is the tension on rope A?
A) 44 N
B) 69 N
C) 72 N
D) 88 N
E) 98 N

Question

A 10-kg sign is held by two ropes as shown in the figure. What is the tension on rope A? 
A) 44 N 
B) 69 N 
C) 72 N 
D) 88 N 
E) 98 N

Quizplus · Accepted Answer

Since the sign is not moving, the net force on it must be zero. This means that the upward force on the sign (the tension in rope A) must be equal to the weight of the sign, which is 10 kg multiplied by the acceleration due to gravity, 9.8 m/s^2. Therefore, the tension on rope A is 98 N. Choice D is the closest answer to this value.

A 10-Kg Sign Is Held by Two Ropes as Shown