Question Detail
Question
For the two-block system (6 kg on horizontal surface, μk=0.5, and a 4 kg hanging block), what is the equation of motion for the 6 kg block on the horizontal surface?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The lecture shows the equation for the block on the horizontal surface as T - μR = 6a. Tension (T) pulls to the right, and kinetic friction (μR) opposes the motion to the left.
Hint
Apply Newton's second law to the 6 kg block. The direction of its acceleration (to the right) is positive. What are the horizontal forces acting on it?