Practice Vector Representation Of Velocity (3.2) - Composition and Resolution of Velocity

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What defines a vector?
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Think about how you would describe a force.
Question 2.
What are the components of a velocity vector?
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Consider how we measure motion in two dimensions.
3Question 3.
What does a vector quantify?
- Magnitude only
- Direction only
- Both magnitude and direction
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Think about how we describe physical quantities.
4Question 4.
Is velocity a scalar quantity?
- True
- False
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Recall the difference between scalar and vector quantities.
Question 5.
A swimmer is moving at a velocity of 4 m/s north and 3 m/s east. Calculate the resultant velocity and direction using vector addition.
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Use the Pythagorean theorem for magnitude and arctan for angle.
Question 6.
A soccer player kicks a ball with a velocity of 25 m/s at a 30° angle to the ground. Find its horizontal and vertical components.
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Use trigonometric functions for your calculations.

6 more questions in this section. Enroll free to practise them all.