On a cello, the string with the largest linear density (1.58 10-2 kg/m) is the C string. This string produces a fundamental frequency of 65.4 Hz and has a length of 0.805 m between the two fixed ends. Find the tension in the string.

Explanation:

The relationship of between fundamental frequency, density of the string, length and tension of the string is:

where L/m is the linear density.

make F the subject of the formula

substitute the values

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

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