what work is to be done to increase velocity of a car from 30km/h to60km/h if the mass of the car is 1500kg
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we know that W=Fs,
F = ma
F = 1500 × 30 = 45000 N
So, W = 45000 × 30 = 1350000 J
When the car accelerate to 60 km/h then,
F=ma
F= 1500 × 60 = 90000 N
So, W = 90000 × 60 = 5400000 J
Now subtract both of the,
5400000 - 1350000 = 4050000 J
Therefore, 4050000 J of work need to be increased to attain an acceleration of 60km/h.
F = ma
F = 1500 × 30 = 45000 N
So, W = 45000 × 30 = 1350000 J
When the car accelerate to 60 km/h then,
F=ma
F= 1500 × 60 = 90000 N
So, W = 90000 × 60 = 5400000 J
Now subtract both of the,
5400000 - 1350000 = 4050000 J
Therefore, 4050000 J of work need to be increased to attain an acceleration of 60km/h.
riya3341:
thanku jahan
please give the answer of my second question please
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