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Novay_Z [31]
3 years ago
13

Need help identifying the rest of the elements!

Physics
1 answer:
gregori [183]3 years ago
6 0
I think that number five is lithium
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It takes a minimum distance of 57.46 m to stop a car moving at 13.0 m/s by applying the brakes (without locking the wheels). Ass
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Answer:

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We know by equation of motion that,

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s= Distance traveled before stop m

Case 1

u=  13 m/sec, v=0, s= 57.46 m, a=?

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a = -1.47 m/Sec^{2} (a is negative since final velocity is less then initial velocity)

Case 2

u=29 m/sec, v=0, s= ?, a=-1.47 m/Sec^{2} (since same friction force is applied)

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