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wolverine [178]
1 year ago
6

14) A race car accelerates from rest to a velocity of 41 m/s in 480 m. What is the acceleration of the race car?

Physics
1 answer:
natka813 [3]1 year ago
8 0

Answer:

Explanation:

V₀ = 0 m/s

V = 41 m/s

S = 480 m

___________

a - ?

Distance traveled:

S =  (V² - V₀²) / (2*a)

Acceleration :

a = (V² - V₀²) / (2*S)

a = (41² - 0²) / (2*480) = 1.75 m/s²

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I hope this is useful for you

A.

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c_{metal}*(500g)(100\°C-25\°C)=-(250g)(4.18\frac{J}{g\°C})(20\°C-25\°C)\\c_{metal}=0.14\frac{J}{g\°C}

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