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A cartraveling at 30ms\(^{-1}\) overcomes a frictional resistance of 100N while moving. ...

A car traveling at 30ms\(^{-1}\) overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine. [1 hp = 0.75 kW]
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  • A 0.23hp
  • B 0.40hp
  • C 4.00hp
  • D 4.40hp
Correct Answer: Option C
Explanation:
P = FV = \(\frac{100 \times 30}{1000} = 3 kW\)
\(\frac{3}{0.75} = 4hp\)

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