Neco 2018 Physics Question 7

Practice essay / theory question 7 from the 2018 Neco Physics examination. This question covers Hydrostatic pressure, Resultant force on a plane surface, Center of pressure, Torque .

Neco 2018 Physics Essay / Theory

Topics: Hydrostatic pressure Resultant force on a plane surface Center of pressure Torque

Question 7 NECO • 2018 • PHYSICS • essay

A vertical rectangular gate 1.5 m wide and 4.0 m high is hinged at its top edge and holds back water in a reservoir. The water surface is level with the top of the gate. Assume the density of water is 1000 kg·m⁻³ and g = 9.8 m·s⁻². Answer the following:

Question Parts

( a )

Calculate the magnitude of the resultant hydrostatic force exerted on the gate.

( b )

Determine the depth below the water surface at which the resultant force acts (the centre of pressure).

( c )

If the hinge provides a resisting torque, calculate the magnitude of the torque that must be supplied to keep the gate in equilibrium (ignore friction).

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About This Question

This is Neco 2018 Physics Question 7. It is one of the essay questions from the 2018 Neco Physics examination.

The question covers Hydrostatic pressure, Resultant force on a plane surface, Center of pressure, Torque .

View More Neco 2018 Physics Questions More Neco Practice Questions Back to Questions

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