Question Number 132225 by bemath last updated on 12/Feb/21

Answered by mr W last updated on 12/Feb/21
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Commented by mr W last updated on 12/Feb/21
![x=2 tan θ (dx/dt)=(dx/dθ)×(dθ/dt)=(2/(cos^2 θ))×(dθ/dt)=2(1+tan^2 θ)×(dθ/dt) =2[1+((x/2))^2 ]×(dθ/dt) at x=4: (dx/dt)=2[1+((4/2))^2 ]×((3×2π)/(60))=π=3.141 km/s](https://www.tinkutara.com/question/Q132228.png)
Commented by bemath last updated on 12/Feb/21

Commented by mr W last updated on 12/Feb/21

Commented by bemath last updated on 12/Feb/21

Commented by otchereabdullai@gmail.com last updated on 13/Feb/21
