Suppose that the terminal speed of a particular sky diver is 165 km/h in the spread-eagle position and 320 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other, find the ratio of the effective cross-sectional area A in the slower position to that in the faster position (Aslower / Afaster).

3.76

Explanation:

We are given that

Terminal speed in the spread -eagle position,

Terminal speed in the nosedive position,

We have to find the ratio of the effective cross-sectional area A in the slower position to that in the faster position.

We  know that

Area, A=

asthenosphere and convection

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s