Question Detail

PHY 101 Friction Objective Question
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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 4 kg hanging block?
Options
A 40 - T = 4a
Correct Answer
B T - 40 = 4a
C 40 + T = 4a
D T = 4a
Correct Answer

Option A is the correct answer.

Detailed Explanation

The lecture shows the equation for the hanging block as 40 - T = 4a. The weight (40 N) acts downwards, tension (T) acts upwards, and the net force causes acceleration downwards.

Hint

Apply Newton's second law (F_net = ma) to the hanging block. Choose the direction of acceleration (downwards for the hanging block) as positive.

Question Info

Course: PHY 101
Topic: Friction
Type: Objective
Difficulty: Not specified
Question 507 of 1250
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