Neco Model Questions Vol1 2018 Physics Question 2

Practice essay / theory question 2 from the 2018 Neco Model Questions Vol1 Physics examination. This question covers Scalars and Vectors, Relative Velocity, Kinematics .

Neco Model Questions Vol1 2018 Physics Essay / Theory
Topics: Scalars and Vectors Relative Velocity Kinematics
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2018 • PHYSICS • essay

A boat can travel at a speed of 5.0 m s⁻¹ in still water. It attempts to cross a river that flows uniformly at 3.0 m s⁻¹ from west to east. The river is 200 m wide.

Question Parts

( a )
If the boat points directly north (perpendicular to the bank) and maintains its speed relative to the water, determine the magnitude and direction of the boat's resultant velocity relative to the ground.
( b )
To land at a point directly opposite its starting point on the far bank, the boat must aim upstream at an angle θ to the north‑west direction. Determine the required heading angle (relative to the north) and the time taken to cross the river.
( c )
If the river speed were to double while the boat's speed in still water remains unchanged, discuss qualitatively how the required heading angle and crossing time would be affected.

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About This Question

This is Neco Model Questions Vol1 2018 Physics Question 2. It is one of the essay questions from the 2018 Neco Model Questions Vol1 Physics examination.

The question covers Scalars and Vectors, Relative Velocity, Kinematics .

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