Question

I need help question

Answer 1

`\begin{gathered} Ifangleofdepression=5º \\ Thecomplementaryangle=90º\text{ - }5º\text{ = }85º \\ So: \\ tand(85º)=(x)/(310ft) \\ x=tand(85º)(310ft) \\ x=11.43(310) \\ x=3543.32ft \end{gathered}`

a is 3543.32 ft

B)

`\begin{gathered} tand(76)=(x)/(310ft) \\ x=4.01(310ft) \\ x=1243.1ft \end{gathered}`

c)

Speed =

`(\Delta d)/(\Delta t)=\frac{3543.32ft\text{ - }1243.1ft}{55s\text{ - }0s}=(2300.22ft)/(55s)=41.82ft/s`

d)

`(1s)/(41.82ft)(3543.32ft)=84.73s\approx85s`