Question

car increases its speed from 15 km per hour to 30 km per hour what is it acceleration

Answer 1

acceleration = v-u/t
here, u= 15km/s
v= 30km/s
therefore, a = v-u/t
= 15-30/t
-15/t
= -15/3600
= -15000/3600
= 41.3m/s2

Answer 2

HEY MATE HERE IS YOUR ANSWER....

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$as \: we \: know \\ acceleration = \frac{change \: in \: velocity}{time \: taken} .... \\ \frac{v - u}{t} \\ \\ where \\ u = initial \: velocity. \\ v = final \: velocity. \\ t = time \: taken.$

$acceleration = \frac{30 - 15}{3600} ms^{ - 2} \\ \\ a = \frac{15}{3600} ms ^{ - 2} \\ \\ \\ =\frac{15000}{3600}ms^{-2}\\ \\ \\=4.16ms^{-2}$

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HOPE IT HELPS YOU MATE....

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BY GURVEER
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