Water from a fire hose is directed horizontally against a wall at a rate of 50.0 kg/s and aspeed of 42.0 m/s. Calculate the force exerted on the wall, assuming the water’s horizontalmomentum is reduced to zero.

magnitude of the force exerted on the wall is 2100 N.

Explanation:

given data

rate = 50.0 kg/s

speed = 42.0 m/s

solution

momentum is reduced = zero

so final speed v = 0

so relation between the force and the momentum is express as

Force =      ...............1

Force =    

put here value and we get

Force =  

Force = 2100 N

so that magnitude of the force exerted on the wall is 2100 N.

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