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spring stretches from by 1.8 cm and 2.8 kg block is suspended from its end the mass that has to be attached to the spring so that its frequency of the vibration is three Hz is

spring stretches from by 1.8 cm and 2.8 kg block is suspended from its end the mass that has to be attached to the spring so that its frequency of the vibration is three Hz  is

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1 Answers

TARUN SHARMA
55 Points
5 years ago
WHEN mass 2.8 kg attached then the system is in equalibrium with the spring
  so ; kx = mg
k=mg/x
 
and as we know frequency= omega/2pi
 
omega^2=k/m1
 
m1 total mass
by equating values in equation you will get your answer
 

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