Question Detail
Question
In the frictionless inclined plane problem with a 200 N block, a cord attached to the block passes over a pulley and is attached to a second hanging block. If the system is in equilibrium, what is the tension T in the cord?
Correct Answer
Option B is the correct answer.
Detailed Explanation
For the block on the frictionless incline to be in equilibrium, the tension pulling it up the incline must balance the component of weight pulling it down the incline. Therefore, T = 200 sin 30°.
Hint
Since the plane is frictionless, the only force along the incline is the component of weight and the tension. For equilibrium, these must be equal and opposite.