Posted by **Steve** on Saturday, September 17, 2011 at 12:22pm.

A car comes to a stop for a stop sign in 4.6 seconds. If it was initially traveling at 27.5 m/s, how much space did it take for the car to stop?

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**bobpursley**, Saturday, September 17, 2011 at 12:24pm
Vf=Vi+at solve for a.

then

Vf^2=Vi^2 + 2ad solve for d.

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**Steve**, Saturday, September 17, 2011 at 12:26pm
what is Vi?

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**bobpursley**, Saturday, September 17, 2011 at 12:27pm
vi=27.5m/s

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**Steve**, Saturday, September 17, 2011 at 12:29pm
this is where get stuck

vf=27.5(a)(4.6)

vf=126.5

i dont know the rest

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**Steve**, Saturday, September 17, 2011 at 12:40pm
please help me im realy stuck

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