A block of weight Q rests on an inclined plane and it is attached to a...
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A block of weight Q rests on an inclined plane and it is attached to a string which runs over a frictionless pulley to carry a block of weight P at its other end. The coefficient of friction between the block of weight Q and the inclined plane is u. Consider the following cases: Case I: weight Q starts moving down the inclined plane. Case II: weight P starts falling down. a The limiting values of ratio P/Q for Case I and Case II respectively are (a) (sina - μ cosa) and (sina + µcosa) (b) (usina - cosa) and (usina + cosa) (c) (sina+ucosa) and (sina - ucosa) (d) (usina + cosa) and u(sina - cosa) A block of weight Q rests on an inclined plane and it is attached to a string which runs over a frictionless pulley to carry a block of weight P at its other end. The coefficient of friction between the block of weight Q and the inclined plane is u. Consider the following cases: Case I: weight Q starts moving down the inclined plane. Case II: weight P starts falling down. a The limiting values of ratio P/Q for Case I and Case II respectively are (a) (sina - μ cosa) and (sina + µcosa) (b) (usina - cosa) and (usina + cosa) (c) (sina+ucosa) and (sina - ucosa) (d) (usina + cosa) and u(sina - cosa)
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Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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