Recent content by allezfou

mg-kV=m dV/dt. the net weight is W, which is also mg. W-kV=m dV/dt

so am i assuming a vertical pipe with fluid in it? kV-mg=ma. we don't want it in terms of acceleration so we use a=dV/dt.

gravity.

i don't know.

there is a force on the particle moving it forward and the drag force

i wrote the question verbatim, so i will assume a drag force (and a force of flowing fluid?) i can write the answer if it helps, but it's useless without the method.

Homework Statement Very small particles moving in fluids are known to experience a drag force proportional to speed. Consider a particle of net weight W dropped in a fluid. The particle experiences a drag force, Fd = kV, where V is the particle speed. Determine the time required for the...