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Llana [10]
3 years ago
7

Pleaseeee help!!!!!!!!

Physics
1 answer:
kenny6666 [7]3 years ago
6 0
Most likely B. Will erode, if not it will grow weeds
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When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for
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Answer:

F=5449 N

Explanation:

Work done is a product of force and displacement ie

Work done, W, = Force*Displacement

Power, P, is Work done/Time

P=\frac {W}{t}=\frac {FS}{t} where P is power, W is work done, F is force, S is displacement and t is time

In this case, F is the frictional force. Converting the power from hp to W, we multiply by 746 hence P=746*168=125328  W

Since displacement/time is velocity, then

P=FV where V is velocity in m/s

Making F the subject

F=\frac {P}{V}

F=\frac {125328}{23}=5449.043478  N

F=5449 N

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On a road trip, you travel from the 100 mile marker to the 250 mile marker in 2 hours. How fast are you going?
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