A 1-N pendulum bob is held at an angle $\theta$from the vertical by a 2-N horizontal force F as shown. The tension in the string supporting the pendulum bob is:
A) 2/N
B) 2 N
C) N
D) 1 N
E) none of these

Question

A 1-N pendulum bob is held at an angle $\theta$from the vertical by a 2-N horizontal force F as shown. The tension in the string supporting the pendulum bob is: 
A) 2/N 
B) 2 N 
C) N 
D) 1 N 
E) none of these

Quizplus · Accepted Answer

Since the pendulum bob is being held at an angle by a horizontal force, the tension in the string supporting the pendulum bob must be equal to the weight of the bob, which is 1-N. Therefore, the tension in the string is N. Option A is incorrect because it involves the value of angle theta which is not given in the question. Option B is incorrect because it assumes the horizontal force is equal to the weight of the pendulum bob which is not given in the question. Option D is incorrect because it assumes the tension in the string is equal to the horizontal force, which is not true for a pendulum in this situation. Therefore, the correct answer is C.

A 1-N Pendulum Bob Is Held at an Angle θ\thetaθ From the Vertical by a 2-N Horizontal Force F as From the Vertical

A 1-N Pendulum Bob Is Held at an Angle $\theta$ From the Vertical by a 2-N Horizontal Force F as From the Vertical