A mass of mass m, experiences a viscous drag, F and an upthrust, U as...
PHYSICS
WAEC 2007
A mass of mass m, experiences a viscous drag, F and an upthrust, U as he descends towards the ground at a steady velocity, Using a parachute. If the acceleration of free fall is g, which of the following expressions is correct?
- A. FU = mg
- B. U + F - mg = 0
- C. U - F = mg
- D. F - U - mg = 0
Correct Answer: B. U + F - mg = 0
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