the energy required to accelerate a car from 10 metre per second to 20 metre per second is n times the energy required to accelerate the same from rest to 10 metre per second where an accelerate the same from rest at 10 metre per second where n is
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Answer:
Energy required to accelerate from 10m/s to 20m/s E
1
=
2
1
m(400−100)
Energy required to accelerate from rest to 10m/s E
2
=
2
1
m(100−0)
E
2
E
1
=
2
1
m(100)
2
1
m(300)
=3times
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