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DedPeter [7]
3 years ago
13

A car and driver weighing 5060N passes a sign stating "Bridge out 27.5 meters ahead." She slams on the brakes and the car decele

rates at a constant rate of 14 m/s^2. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of the work done stopping the car if the car just stops in time to avoid diving into the water?
Answer in units of J.
Physics
1 answer:
OlgaM077 [116]3 years ago
6 0

Answer:

<u>198785.714286 Joules</u>

Explanation:

W=f*d

F=ma\\F=516.326530612*-14\\F=-7228.57142857 N\\

<u>To find work:</u>

Now that the force and the distance are known, plug and chug:

W=f*d\\W=-7228.57142857*27.5\\W=-198785.714286J

Note that the question is asking for the magnitude of work, so the negative can be discarded as it is a directional component.

So, your answer is

<u>198785.714286 Joules</u>

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Answer:

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Explanation:

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