what is the acceleration required to change the velocity of an object from 20 metre per second to 40 metre per second across displacement from 40 metres
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v²-u²=2as
40²-20²=80a
1600-400=80a
1200=80a
a=1200/80
a=15m/s²
40²-20²=80a
1600-400=80a
1200=80a
a=1200/80
a=15m/s²
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