Question

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

Answer 1

`\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`