Answer:
![W=-21,870,000\ J](https://tex.z-dn.net/?f=W%3D-21%2C870%2C000%5C%20J)
Explanation:
<u>Work and Kinetic Energy
</u>
The work an object does due to its motion is equal to the change of its kinetic energy. Being ko and k1 the initial and final kinetic energy respectively and m the mass of the object, then
![W=\Delta k=k_1-k_0](https://tex.z-dn.net/?f=W%3D%5CDelta%20k%3Dk_1-k_0)
Since
![\displaystyle k=\frac{mv^2}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20k%3D%5Cfrac%7Bmv%5E2%7D%7B2%7D)
We have
![\displaystyle W=\frac{mv_1^2}{2}-\frac{mv_0^2}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20W%3D%5Cfrac%7Bmv_1%5E2%7D%7B2%7D-%5Cfrac%7Bmv_0%5E2%7D%7B2%7D)
The truck has a mass of 60,000 kg and is moving at 27 m/s. The runaway truck ramp must stop the truck, so the final speed is 0. Thus
![\displaystyle W=\frac{(60,000)0^2}{2}-\frac{(60,000)(27)^2}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20W%3D%5Cfrac%7B%2860%2C000%290%5E2%7D%7B2%7D-%5Cfrac%7B%2860%2C000%29%2827%29%5E2%7D%7B2%7D)
![W=0-21870000\ J](https://tex.z-dn.net/?f=W%3D0-21870000%5C%20J)
![\boxed{W=-21,870,000\ J}](https://tex.z-dn.net/?f=%5Cboxed%7BW%3D-21%2C870%2C000%5C%20J%7D)
I’m not sure I think if you google it it should pop up or go on quizlet sorry
Is that a question? If it is not what its the question?
Please mark brainliest you answer is B).
Have a good night!