Neco 2024 Physics Question 32

Practice objective / multiple choice question 32 from the 2024 Neco Physics examination.

Neco 2024 Physics Objective / Multiple Choice Medium Difficulty
Question 32 NECO • 2024 • PHYSICS • objective

A rectangular plate of dimensions \(0.5\,\text{m}\) by \(1.2\,\text{m}\) is submerged vertically in water so that its top edge is \(0.30\,\text{m}\) below the water surface. The plate is tilted such that it makes an angle of \(30^{\circ}\) with the vertical. Determine (a) the magnitude of the resultant hydrostatic force on the plate and (b) the distance measured along the plate from the top edge to the point of action of this force. Use \(\rho=1000\,\text{kg m}^{-3}\) and \(g=9.8\,\text{m s}^{-2}\).

Answer Options

A. Resultant force \(\approx 5.50\times10^{3}\,N\); point of action \(\approx 0.60\,m\) down the plate from the top edge
B. Resultant force \(\approx 4.20\times10^{3}\,N\); point of action \(\approx 0.85\,m\) down the plate from the top edge
C. Resultant force \(\approx 5.10\times10^{3}\,N\); point of action \(\approx 0.68\,m\) down the plate from the top edge
Correct Answer D. Resultant force \(\approx 4.82\times10^{3}\,N\); point of action \(\approx 0.77\,m\) down the plate from the top edge
Correct Answer
D
Correct Option:
Resultant force \(\approx 4.82\times10^{3}\,N\); point of action \(\approx 0.77\,m\) down the plate from the top edge

About This Question

This is Neco 2024 Physics Question 32. It is one of the objective questions from the 2024 Neco Physics examination.

Difficulty level: Medium .

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