Question

ii. A car of mass 1000 kg is moving with a velocity of 4 m/s. Calculate the power of the car after 16

seconds in S.I. unit.​

Answer 1

Answer:

A vehicle of mass 1000 kg is moving with a velocity of 15 m s^-1 . It is brought to rest by applying brakes and locking the wheels. If the sliding ...

Top answer · 3 votes

F.S = KE S = KEF = 12 × 1000 × 15^26000 = 18.75

Answer 2

Given : A car of mass 1000 kg is moving with a velocity of 4 m/s

To Find : Power of the car after 16 sec

Solution:

Energy = Power x Time

=> Power = Energy / Time

Energy = (1/2)mv²

m = 1000 kg

v = 4 m/s

Energy =   (1/2)1000 * 4²  = 8000  J

Time = 16 s

Power = 8000/16  J/s

= 500 W

power of the car = = 500 W

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