Question

5. For a force F--mg ± c1,2 (the sign chosen so the drag force is opposite the motion), let u = 1,2, and generate a differential equation for u(r) (i.e., involving derivatives with respect to x rather than time; use the chain rule to relate duldx and dv/dt), which is not too hard to solve for u(r). Use this to find the maximum height of a ball thrown vertically upwards at speed vo. Then find the speed ve of the ball after it returns to its starting point, expressing v'f in terms of vo and the terminal speed v only.

Answer 1

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