The motion of 10 g mass tied to massless spring is represented by S.H.M. x=25cos(3t+(pi)/(4)) where x is in cm and t in second, the force constant of the spring is :

The motion of 10 g mass tied to massless spring is represented by S.H.

1.	The motion of 10 g mass tied to massless spring is represented by S.H.M. x=25cos(3t+(pi)/(4)) where x is in cm and t in second, the force constant of the spring is :
Answer» `9" N m"^(-1)` `0.9" N m"^(-1)` `0.09" N m"^(-1)` none of the above. Solution :Here `omega t=3t` `IMPLIES""omega=3` rad/s. Now `""v=(1)/(2pi)SQRT((k)/(m))` or `""omega=sqrt((k)/(m))` `implies""k=omega^(2)m` `:.""k=9xx(10)/(1000)=0.09"N"//"m"`. So the correct choice is ( c ).

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The motion of 10 g mass tied to massless spring is represented by S.H.M. x=25cos(3t+(pi)/(4)) where x is in cm and t in second, the force constant of the spring is :

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