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In give figure expansion of spring will be :- (take g = 10 m/s2)  
Asked by Prashant DIGHE | 22 Jun, 2020, 10:31: PM
Expert Answer
 
 B y space a p p l y i n g space N e w t o n apostrophe s space l a w space o f space m o t i o n comma space
C o n s i d e r space t h e space c a s e space o f space 4 space k g space b l o c k comma space
m g space minus space T space equals space m a space
t h u s comma space
4 cross times 10 space minus space T space equals space 4 cross times 2
40 space minus space T space equals 8 space
T space equals 32 space N space

T e n s i o n space i n space s p r i n g space i s comma space
T apostrophe space equals space 2 T space equals space 32 cross times 2 space equals space 64 space N space
T space equals space k x space
k space equals 100 space N divided by m space... space left parenthesis f r o m space d i a g r a m right parenthesis
64 space equals space 100 space cross times space x
x space equals fraction numerator space 64 over denominator 100 end fraction space equals space 0.64 space m space equals 64 space c m
Answered by Shiwani Sawant | 23 Jun, 2020, 08:12: PM
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