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need help with a question regarding magnitude of accelaration the momentba bungee cord stsrts pulling on her.

need help with a question regarding magnitude of accelaration the momentba bungee-example-1
User Serge Tarkovski
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1 Answer

14 votes
14 votes

\begin{gathered} \\ T=816N \\ W=mg \\ 400N=m*9.8 \\ m=40.8163265306\approx40.8\text{ kg} \end{gathered}

The net force.


\begin{gathered} \text{Net force=}400N-816N \\ \text{Net force=-}416N \end{gathered}

This means the cord pulls her upward. Therefore, the magnitude of her acceleration can be calculated as follows


\begin{gathered} g=(416)/(40.8) \\ g=10.1960784314\approx10.2m/s^2 \end{gathered}

Note her weight act downward, while the cord pulls her upward direction.


\text{Magnitude of her acceleration = 10.2 m/s}^2

User Snorpey
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