Question

A car increases it's speed from 36 kmh ^-1 to 72 kmh^-1 in4 seconds Find it's acceleration and the distance moved​

Answer 1

Explanation:

u=36km/h=36×5/18=10m/s

v=76km/h=76×5/18=20m/s

time taken ,t =4sec

v=u+at

20=10+4a

10=4a

a=10/4=5/2m/s²

v²-u²=2as

20²-10²=2×5/2×s

400-100=5s

300=5s

s=300/5=60m

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