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cyt91

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**Fluid Mechanics --Momentum Equation**

## Homework Statement

A large weigh tank is to be used in the calibration of a flow metre. Measurements of weights as a function of time are to be made. Water enters the tank vertically from the flow metering system at a speed of 20 ft/s through a 1.5 in. diameter pipe. If the weight of the empty tank is 50 lbf, determine the scale reading at t=10 s.

I found the reading to be 74.8 lbf but the answer is 212.67 lbf.

Any help is appreciated.

The link to my working.

https://skydrive.live.com/?sc=photos&cid=6b041751c72e14ad#cid=6B041751C72E14AD&id=6B041751C72E14AD%21173