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Dmitry [639]
3 years ago
13

the train is travelling at 15 m/s. It accelerates at 3 m/s² for 20 seconds. How far does the train travel in this time?

Physics
2 answers:
lord [1]3 years ago
7 0
So I believe that you have to use s=ut+1/2at2 so s=15 into 20+1/2 into 3 into 400 this is equal to 900m btw idk if it’s true perhaps you can check on snapsolve
Anvisha [2.4K]3 years ago
5 0
18meters per 20 seconds so
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Answer:

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Explanation:

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Work done by friction = energy change of the player

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b) Assuming the frictional force stays constant,

Work done by friction = Frictional force×distance

Frictional force = kinetic friction(μ)×normal reaction

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Combining these equations

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3 years ago
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Answer:

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7 0
3 years ago
Please help, and show steps. Thank you very much!
Vikentia [17]
V = 8 * 10^2 km/h = 800km/h
S= 1,8* 10^3 km = 1800km
t = ?
v = S/t
t = S/v
t = 1800km/ 800km/h
t ≈ 2,25h (135min)
6 0
3 years ago
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