Question

what is the work to be done to increase the velocity of a van from 10 m/s to 20 m/s, If the mass is 2000 kg?

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Answer 1

Answer:

Question:what is the work to be done to increase the velocity of a van from 10 m/s to 20 m/s, If the mass is 2000 kg?

Step-by-step explanation:

=1/2mv^2-1/2mu^2

=1/2×2000kg×20m/s×20m/s-1/2×2000kg×10m/s×10m/s

=1000kg×20×20m/s-1000kg×100m^2/s^2-

=400000J-100000J-

=3,00,000J

or 3×10^5 J

Answer 2

Answer:

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