Question Detail
Question
In the two-block system described, a 6 kg block on a horizontal surface is connected by a cord to a 4 kg hanging block. What is the purpose of the cord and pulley?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The cord passes over a light, frictionless pulley. The pulley's function is to change the direction of the tension force, allowing the vertical weight of the hanging block to exert a horizontal pull on the block on the surface.
Hint
Without the pulley, the hanging block would just fall straight down.