Question

What is the work to be done to increase the velocity of car from 30km/h to 40km/h if the mass of car is 1500kg​

Answer 1

Answer:

Initial velocity u=30 km/h=30×

18

5

=

3

25

m/s

Final velocity v=60 km/h=60×

18

5

=

3

50

m/s

Mass m=1500 kg

Work done W= 2

1

mv

2

−

2

1

mu

2

⟹ W=

2

m

(v+

Explanation:

Hope it helps u