A vehicle of mass 200 kg is driven with a constant acceleration 2 along a straight level road against a constant resistance 50N. When the velocity of the vehicle is 10m/s. Power of the engine is
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V = 10 m/s
M = 200 kg
a = 2m/s^2
R.F = 50 N
P = ?
F = m×a
=200×2
=400N
Total force = force + resistance force
= 400+50
=450 N
Power in terms of force and velocity is POWER = FORCE × VELOCITY
P =F× V
=450× 10
=4500W
In terms of kilo watt ,the answer will be
4.5 KW
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