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A block with mass m = 5.00 kg slides down a surface

Chapter 4, Problem 70P

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QUESTION:

A block with mass ?m? = 5.00 kg slides down a surface inclined 36.9O to the horizontal (?Fig. P10.62?). The coefficient of kinetic friction is 0.25. A string attached to the block is wrapped around a flywheel on a fixed axis at ?O?. The flywheel has mass 25.0 kg and moment of inertia with respect to the axis of rotation. The string pulls without slipping at a perpendicular distance of 0.200 m from that axis. (a) What is the acceleration of the block down the plane? (b) What is the tension in the string?

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QUESTION:

A block with mass ?m? = 5.00 kg slides down a surface inclined 36.9O to the horizontal (?Fig. P10.62?). The coefficient of kinetic friction is 0.25. A string attached to the block is wrapped around a flywheel on a fixed axis at ?O?. The flywheel has mass 25.0 kg and moment of inertia with respect to the axis of rotation. The string pulls without slipping at a perpendicular distance of 0.200 m from that axis. (a) What is the acceleration of the block down the plane? (b) What is the tension in the string?

ANSWER:

Solution 70P Step 1 of 3: a)The free body diagram of flywheel we know that = Iz z = TR z Now TR = I z

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