A taut string of length 1.0 m is holding a yo-yo of mass 130 grams. You notice from flicking the top of the string that the pulse takes 66 ms to travel down to the yo-yo. What is the mass of the string

m = 5.54 grams.

Explanation:

It is given that,

Length of a string, l = 1 m

Mass, m = 130 g = 0.13 kg

Time, t = 66 ms = 0.066 s

The speed of a wave is given by :

T is tension, T = mg

T = 0.13 kg × 9.8 m/s² = 1.274 N

is mass per unit length,

Let t is time. It can be given by :

or

m = 5.54 grams

So, the mass of the string is 5.54 grams.

step-by-step explanation:

we are given

we have to simplify it

firstly, we will factor it

now, we can cancel like terms

now, we can combine it

so, we get

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