Problem $20$

Air flows in the below pipe bend with velocity $V=$

$25\frac{m}{s}$ and $D=20cm.$ If the pipe and the air weigh

$15N,$ what is the force required to support this pipe bend

for this flow? Neglect the pressures at the inlet and

outlet.

$($a$)-13Ni,+22Nk$

$($b$)-7Ni,-3Nk$

$($c$)-24Ni,-3Nk$

$($d$)-59Ni,+5\mathrm{.}1Nk$

$($e$)-44Ni,+3\mathrm{.}2Nk$