# Q5 - Problem 1 A wet bar of soap slides freely down a ramp...

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Problem 1 A wet bar of soap slides freely down a ramp 7.0 m long inclined at 7.0 How long does it take to reach the bottom? Assume μ k = 0.050. Express your answer using two significant figures. t= 4.4 s ( WRONG 20 s ) A wet bar of soap slides freely down a ramp 9.0m long inclined at 7.0 degrees. How long does it take to reach the bottom? Assume ? k = 0.070.

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Problem 2 A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 28 above the horizontal. The coefficients of static and kinetic friction between the box and wall are 0.40 and 0.30, respectively. The box slides down unless the applied force has magnitude 33 N What is the mass of the box? Express your answer using two significant figures.
m= 2.8 m correct ( A small box is held in place against a rough vertical wall bysomeone pushing on it with a force directed upward at 30 above the horizontal. The coefficients of staticand kinetic friction between the box and wall are 0.40 and 0.30,respectively. The box slides down unless the

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