Question

A constant force of magnitude 15,000 N is applied by an engine on a car of mass 3,000 kg. If frictional force is neglected, then the car will accelerate with a magnitude of​

Answer 1

Explanation:

YOU all so write this type

Mass of the car m=1000 kg

Initial velocity of car v

1

=0

Final velocity of car v

2

=100km/h=100×

18

5

m/s=27.78m/s

Average power of car=change in kinetic energy per unit time=

t

2

1

mv

2

2

−

2

1

mv

1

2

,since v

1

=0

So,average power of car=

t

2

1

mv

2

2

=

5

2

1

×1000×27.78

4