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4 cards from this section. Quick, good the night before a test.
What is the formula for speed?
Think of how fast an object moves.
Is speed a scalar or vector quantity?
Does it have direction?
What is the formula for average speed?
Think about the journey in total.
Velocity is a vector quantity?
Remember how direction is crucial for this term.
If a cyclist travels 120 km northeast in 3 hours and then 60 km southwest in 1 hour, determine the average velocity.
Convert directions into components if needed.
An object travels 100 m east, then 50 m north, and finally 100 m west in a total time of 15 seconds. Calculate its average speed and average velocity.
Pythagorean theorem may help in calculating displacement.
6 more questions in this section. Enroll free to practise them all.
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