Gce Model Questions Vol1 2021 Physics Question 13

Practice objective / multiple choice question 13 from the 2021 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 13 GCE_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • objective

Water (density 1000 kg·m⁻³) flows steadily through a horizontal pipe that narrows from a diameter of 0.10 m at point A to a diameter of 0.05 m at point B. The speed of the water at A is 2.0 m·s⁻¹ and the pressure there is 150 kPa. (i) Find the pressure at B. (ii) If a valve completely closes the pipe at B, calculate the force exerted on the valve by the water.

Answer Options

A. P_B = 1.35×10⁵ Pa, F = 2.60×10² N
B. P_B = 1.05×10⁵ Pa, F = 2.10×10² N
C. P_B = 9.80×10⁴ Pa, F = 2.00×10² N
Correct Answer D. P_B = 1.20×10⁵ Pa, F = 2.35×10² N
Correct Answer
D
Correct Option:
P_B = 1.20×10⁵ Pa, F = 2.35×10² N

About This Question

This is Gce Model Questions Vol1 2021 Physics Question 13. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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