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Please solve and explain the following three questions of physics?
A 70kg man is in contact with the inner wall of a hollow cylindrical drum with a radius 3m rotating about its vertical axis with the 200rev/min coeffcietnt of static friction between the wall and his clothing is 0.15. What is the minimum speed cylinder to do the man to stay stuckto, the wall without falling when the floor suddenly removed? 2 A hard drive running at a speed of 33 1 / 3 rpm and has a radius of 15cm. Two coins placed at 4 cm and 14cm from the center of the record. If the co-adhesion between the coins and the record is 0.15, which is of the coins will be run by the record and why? 3 A thin circular loop of radius R rotates about its vertical diameter with a angularfrequency w (omega). Shows that a small bead on the wire loop continues its nadir w2 (omega square) <= g / R. What is the angle made by the radius joining the center to the bead with the vertical downward direction w2 = 2g / R? Neglect friction.
Find the equation for circular motion of a body, in your book or internet and think that by the aplicable, anyway. Draw a vector diagram and then use the equations.
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