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A 60 HP car i...

Question

A 60 HP car is moving with a uniform velocity of 54 km/hr. Find the forward force exerted by its engine.

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Solution

$P o w e r = F o r c e \times V e l o c i t y$

$1 H P = 746 W$

Then, $60 \times 746 = F o r c e \times 54 \times \frac{5}{18}$

$F o r c e = 2984 N$

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