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In the arrangement shown in figure (3-Q3), the ends P and Q of an inextensible string move downwards with uniform speed u.

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asked Mar 21, 2018 in Physics by shabnam praween (19,050 points) ● 5 ● 6 ● 76

In the arrangement shown in figure (3-Q3), the ends P and Q of an inextensible string move downwards with uniform speed u. Pulleys A and B are fixed. The mass M moves upwards with a speed.

(a) 2u cosθ 

(b) u/cosθ 

(c) 2u/cosθ 

(d) ucosθ .

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answered Mar 21, 2018 by santoshjha (25,550 points) ● 4 ● 5 ● 7
selected Mar 27, 2018 by Vikash Kumar
 
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The correct answer is

(b) u/cosθ 

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