A mass m at the end of a spring oscillates with a frequency of 0.83 Hz . When an additional 730 gmass is added to m, the frequency is 0.65 Hz . What is the value of m? Express answer using two sig figs. I have one try left on my physics assignment to get this correct. I have tried 1.158, 1.16(in case it was picky), .88, 1.53, and .90
The concept used to solve this problem is frequency of a mass-spring system.
Initially, use the frequency of spring-mass system to obtain the expression for mass.
Finally, use the two frequencies to find the value of .
The time period of a mass–spring system is given below:
Here, is the spring constant and mass is .
The frequency is given by the inverse of time period as follows:
The initial frequency of the spring mass system is as follows:
…… (1)
The frequency of the spring mass system after the mass of the block increased by is as follows:
Here, new mass is .
Replace by .
…… (2)
Divide and square Equations (1) and (2) as follows:
The ratio of frequencies is as follows:
Substitute for and for .
Rearrange as follows:
Ans:The value of is .
A mass m at the end of a spring oscillates with a frequency of 0.83 Hz...
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