Question

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

Answer 1

666.6 kW

Step-by-step 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