A car is travelling at 20 km/h, it speeds upto 60 km/h in 6 seconds. What is its acceleration?

here initial velocity $20\ km/h$

Final velocity $v=60\ km/h$

Time $t=6\ seconds=6\times\frac{1}{60\times60}\ hour=\frac{1}{600}\ h$

Therefore, acceleration $a=\frac{v-u}{t}$

$=\frac{60-20}{\frac{1}{600}}$

$=\frac{40}{\frac{1}{600}}$

$=2400\ km\h^2$

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Updated on: 10-Oct-2022

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