Part A) A pulley is massless and frictionless. The masses 3 kg, 3 kg, and 7 kg are suspended as in the figure. What is the tension T1 in the string between the
Physics
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Question
Part A) A pulley is massless and frictionless. The masses 3 kg, 3 kg, and 7 kg are suspended as in the figure. What is the tension T1 in the string between the two blocks on the lefthand side of the pulley?
The acceleration of gravity is 9.8 m/s^2.
Answer in units of N.
Part B) What is the magnitude of the acceleration of the lower lefthand block?
The acceleration of gravity is 9.8 m/s^2.
Answer in units of N.
Part B) What is the magnitude of the acceleration of the lower lefthand block?
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1. User Answers Anonym
Answer:
Explanation:
find the system acceleration
F = ma
7g  3g 3g = (7 + 3 + 3)a
1(9.8) = 13a
a = 9.8/13 m/s²
String tension must support weight and provide for acceleration.
F = ma
T₁ = 3(9.8 + 9.8/13)
T₁ = 31.7 N