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Asked by bhaskarpandit2015 10th April 2019, 11:53 PM
Answered by Expert
Answer:
a c c e l e r a t i o n space o f space s i m p l e space p u l l e y space s e t u p space i s space g i v e n space a s space a space equals space open parentheses fraction numerator m subscript 2 minus m subscript 1 over denominator m subscript 2 plus m subscript 1 end fraction close parentheses g
i n space t y e space g i v e n space c a s e space m subscript 2 space equals space M plus m space a n d space m subscript 1 space equals space M
p u t t i n g space t h i s space v a l u e s space w e space g e t
a space equals space open parentheses fraction numerator M plus m minus M over denominator M plus m plus M end fraction close parentheses g space equals space open parentheses fraction numerator m over denominator 2 M plus m end fraction close parentheses g
f o r space m a s s space m space i t s space w e i g h t space w i l l space a c t space d o w n w a r d space a n d space r e a c t i o n space f o r c e space w i l l space a c t space u o w a r d space a n d space sin c e space i t s space i n space a c c e l e r a t e d space f r a m e space p s e u d o space f o r c e space w i l l space a c t space u o w a r d
s o space f o r c e space e q u a t i o n space w i l l space b e
R space plus space m a space equals m g
R space equals space m g space minus m a
p u t t i n g space t h e space v a l u e space o f space a
R space equals space m g minus m open parentheses fraction numerator m over denominator 2 M plus m end fraction close parentheses g
s o l v i n g space t h i s space e q a u t i o n space w e space g e t space
R space equals space fraction numerator 2 M m g over denominator 2 M plus m end fraction
Option 1 is correct 
Answered by Expert 11th April 2019, 11:25 AM
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