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PLEASE HELP: An automobile accelerates at 1.77 m/s^2 over 6.00s to reach the freeway speed at the end of an entrance ramp. If the car's final speed is 88.0 km/h, what was its initial speed when it began accelerating? Express your answer in kilometers per hour.

Mathematics
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\[a = \frac{\Delta v}{t} = \frac{v_f - v_o}{t}\]
Use this formula.
i know the formula im just having trouble converting the units

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Other answers:

Alright, let convert 88 km/h to m/s. \[\frac{ 88 \text{km} }{ \text{h} }\cdot\frac{ 1000 \text{m}}{ \text{km} }\cdot\frac{ 1 \text{h} }{ 3600\text{s} } = ?\]
|dw:1349065649701:dw|
Does this clear everything?
24.4
yea
Yeah, now find Vo Then convert it back to km/h
so is it 13.78?
km/h
13.78 Is it in m/s ?
oops yes
how would i convert it back
Let me show you. |dw:1349067937197:dw|
|dw:1349068014177:dw|
\[\frac{13.78 \cdot 3600 \text{km}}{1000 \text{h}}\]
Just treat units as "variable." You know what I mean?
ok
so it would be 49.6 km/h
That's correct.
ok ty

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