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aleksklad [387]

2 years ago

9

to travel at a constant velocity, a car exerts force that is 551N to balance air resistance. how much work does the car do on th

e air as it tavels 161km from columbus to to cincinatti

1 answer:

densk [106]2 years ago

7 0

Answer:88711000joules

Explanation:

Firstly we have to convert 161km to meters

161km=161×1000m=161000m

Work=force×distance

Work=551×161000

Work=88711000joules

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We need solve this problem though the conservation of momentum. That is,

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Using the equation to find $v_1$ ,

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Using the conservation of energy equation, we have,

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$V_2 = 109.37m/s$

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