Gce Model Questions Vol1 2020 Physics Question 32

Practice objective / multiple choice question 32 from the 2020 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2020 Physics Objective / Multiple Choice Easy Difficulty
Question 32 GCE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

A boat can travel at \(5.0\ \text{m s}^{-1}\) in still water. It attempts to cross a river that flows downstream at \(3.0\ \text{m s}^{-1}\). The boat is aimed directly across the river. (a) What is the magnitude of the boat's resultant velocity relative to the river bank? (b) How far downstream will the boat have drifted after \(20\ \text{s}\)?

Answer Options

A. Resultant speed = \(\sqrt{34}\ \text{m s}^{-1} \approx 5.83\ \text{m s}^{-1}\); downstream drift = 40 m
B. Resultant speed = \(\sqrt{34}\ \text{m s}^{-1} \approx 5.0\ \text{m s}^{-1}\); downstream drift = 60 m
C. Resultant speed = \(\sqrt{34}\ \text{m s}^{-1} \approx 6.0\ \text{m s}^{-1}\); downstream drift = 70 m
Correct Answer D. Resultant speed = \(\sqrt{34}\ \text{m s}^{-1} \approx 5.83\ \text{m s}^{-1}\); downstream drift = 60 m
Correct Answer
D
Correct Option:
Resultant speed = \(\sqrt{34}\ \text{m s}^{-1} \approx 5.83\ \text{m s}^{-1}\); downstream drift = 60 m

About This Question

This is Gce Model Questions Vol1 2020 Physics Question 32. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Physics examination.

Difficulty level: Easy .

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