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A hockey player has an acceleration of −3.1 m/s2. How long does it take him to come to a complete stop from a speed of 13 m/s?

A hockey player has an acceleration of −3.1 m/s2. How long does it take him to come to a complete stop from a speed of 13 m/s?
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A hockey player has an acceleration of −3.1 m/s2. How long does it take him to come to a complete stop from a speed of 13 m/s?

asked
User Daks
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2 Answers

2 votes

Answer:4.2s

Step-by-step explanation:

answered
User Francis Duvivier
by
8.1k points
3 votes
His acceleration function is -3.1
His velocity function is -3.1t + 13
set this to 0 and solve for the time t
-3.1t +13 = 0
3.1t = 13
t = 4.19s
answered
User Jurajo
by
9.1k points
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