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natka813 [3]
3 years ago
12

A truck is moving 14m/s to the south. If it takes the truck 20 seconds to reduce its velocity to 10m/s south. What is is acceler

ation
Physics
1 answer:
WARRIOR [948]3 years ago
7 0

Answer:

-0,2 m/s²

Explanation:

Acceleration = α = (V-V₀)/t

α = (10-14)/20 = -0,2 m/s²

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How much time is needed for a 15,000 W engine to do 1,800,000 J of work? (Power: P = W/t)
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To solve for this we need to use the formula P = W/T (Power = Work/Time).
Since we do not have time, we shall switch up the formula.
Our new formula is T = W/P (Time = Work/Power).
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If a person is walking along at 1.4m/s. How long will it take that person to walk one time around a high school track?​
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285.7s

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