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A CAR ACCElerates FROM REST To
50 M/S iN 7.5 S ; If its MASS = 2,000kg
HOW MUCH POWER is THE ENGINE Delivering

Respuesta :

Answer:

666.6 kW

Explanation:

Power Formula

  • Power = Force × Velocity

Calculating Force

  • F = ma
  • F = m(v - u / t) [From the equation v = u + at]
  • F = 2,000 (50/7.5)
  • F = 2,000 (20/3)
  • F = 40,000/3
  • F = 13333.3 N

Solving for Power

  • P = 13333.3 × 50
  • P = 666666.6 W
  • P = 666.6 kW

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