# physics

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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?

• physics -

Vf=Vi+at solve for a.

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

• physics -

what is Vi?

• physics -

vi=27.5m/s

• physics -

this is where get stuck
vf=27.5(a)(4.6)
vf=126.5
i don't know the rest

• physics -

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