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3 cards from this section. Quick, good the night before a test.
What is acceleration?
Think about how changing speed or direction fits into this.
What are the units of acceleration?
Consider how we express speed and time.
What does acceleration measure?
Think about both speed and direction.
True or False: Acceleration can occur even if an object's speed remains constant.
Consider circular motion as an example.
A motorcycle accelerates uniformly from rest to 90 m/s in 15 seconds. Calculate its acceleration and the total distance covered during this time.
Start by finding the acceleration with $$ a = \\frac{Δv}{Δt} $$ and use average speed to find distance.
Consider a car moving at a constant speed of 60 m/s. If it suddenly accelerates to 90 m/s in 5 seconds, what is its average acceleration? What is the total change in velocity?
Use the acceleration formula and remember that total change in velocity is final speed minus initial speed.
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