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A greyhound's velocity changes from rest to 19 m/s in 2 seconds. What is the greyhound's average acceleration?
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A greyhound's velocity changes from rest to 19 m/s in 2 seconds. What is the greyhound's average acceleration?

User Frith
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2 Answers

3 votes
The correct answer is 9.5 m/s^2. I just took this test.
User GreatWiz
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8.4k points
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We know, a = (v₂-v₁) / (t₂-t₁)
Here, v₂-v₁ = 19 m/s
t₂-t₁ = 2 s

Substitute it into expression,
a = 19/2
a = 9.5 m/s²

So, your final answer is 9.5 m/s²

Hope this helps!
User Leonard
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8.0k points
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