what is the work to be done to increase the velocity of car from 30km/h to 60km/h, if the mass of the car is 500kg
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when velocity is 30 km/h
work done
K.E =1/2 mv^2
=1/2×500×30×30
=225000 joules
when velocity is 60 km/h
work done
K.E=1/2×500×60×60
=900000 joules
Work needed=900000-225000
675000 joules
work done
K.E =1/2 mv^2
=1/2×500×30×30
=225000 joules
when velocity is 60 km/h
work done
K.E=1/2×500×60×60
=900000 joules
Work needed=900000-225000
675000 joules
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