Question about Velocity, involving pulley 2x weights and friction is a factor.

AI Thread Summary
The discussion revolves around calculating the velocity of a 400 kg block descending 6 meters while pulling a 300 kg mass up a 30-degree ramp, factoring in a coefficient of kinetic friction of 0.5. Participants emphasize the importance of starting with free body diagrams to analyze forces acting on the system. The challenge lies in understanding the application of physics principles from various textbooks, with some expressing frustration over the complexity of W. Bolton's materials. The conversation highlights the need for clarity in problem-solving approaches and encourages sharing detailed solutions. Overall, the thread seeks to clarify the dynamics of the system while addressing common difficulties in understanding the concepts.
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Figure Q3 shows a connected system arrangement.

• The block of mass 400 kg is released from rest in the position shown,
• it pulls the 300 kg mass up the ramp of angle 30o.
• the coefficient of kinetic friction between the 300 kg mass and the ramp is 0.5

Determine the velocity of the 400 kg block when it has descended 6 m.



Please explain your answer if you give me one, and try and be sure it's correct or atleast tell me if you are not confident enough about it. I have been through soo many exsamples from 3 dif. books and I can not understand them enough to apply what I learn, probably doesn't help that they're all written by W.bolton :). And also can someone tell me that W.Bolton's books are extremely complicated so I can feel smart again?










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Homework forum policy is to show an attempt at a solution (as shown by #3 in bold font)

Always start by free body diagrams. You should already know this.
 
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