Question
A race car is driven at a constant velocity of $200 \mathrm{~km} / \mathrm{h}$ on a straight, level track. The power delivered to the wheels is $150 \mathrm{~kW}$. What is the total resistive force on the car?
Step 1
We can do this by multiplying the velocity in km/h by 1000 to convert km to m, and then dividing by 3600 to convert hours to seconds. So, the velocity in m/s is $200 \times \frac{1000}{3600} = 55.56 \mathrm{~m/s}$. Show more…
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