Question

The force exerted on a vane due to a jet of water is only a function of the mass flowrate and independent of the jet velocity. a)- True b)-False

Answer 1

b) false

Step-by-step explanation:

We know that rate of change of momentum is called force.

So

Force = rate of change of momentum

`F=(dP)/(dt)`

We know that

P = m v

So

`(dP)/(dt)=(dm)/(dt)V` (take velocity in constant and not changing with time)

`F=(dm)/(dt)V`

So
`F=\dot{m}V`

So force exerted by jet depends on mass flow rate and velocity also.So our option b is right.