Gce Model Questions Vol1 2018 Physics Question 6

Practice objective / multiple choice question 6 from the 2018 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2018 Physics Objective / Multiple Choice Medium Difficulty
Question 6 GCE_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • objective

A vertical rectangular gate 2.0 m wide and 1.5 m high is hinged at its top edge and is completely submerged in fresh water. The top edge of the gate is 2.0 m below the water surface. Determine (a) the magnitude of the total hydrostatic force on the gate, and (b) the depth of the centre of pressure measured from the water surface. Take \(\rho = 1000\ \text{kg\,m}^{-3}\) and \(g = 9.8\ \text{m\,s}^{-2}\).

Answer Options

A. Force = 9.12×10⁴ N, centre of pressure depth = 2.82 m
B. Force = 7.35×10⁴ N, centre of pressure depth = 2.55 m
Correct Answer C. Force = 8.09×10⁴ N, centre of pressure depth = 2.82 m
D. Force = 8.09×10⁴ N, centre of pressure depth = 3.10 m
Correct Answer
C
Correct Option:
Force = 8.09×10⁴ N, centre of pressure depth = 2.82 m

About This Question

This is Gce Model Questions Vol1 2018 Physics Question 6. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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