Question Detail
Question
For the two-block system (6 kg block, 4 kg hanging block, μk=0.5, a=1 m/s², g=10 m/s²), what is the tension in the cord?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The lecture provides T = 40 - 4a. Substituting a = 1 m/s² gives T = 40 - 4 = 36 N. It can also be found from T - μR = 6a => T = 6a + μR = 6 + 30 = 36 N.
Hint
Use the equation for the hanging block, 40 - T = 4a, and plug in the value of 'a' that was just calculated.