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nadinealonzo7853
12.03.2021 •
Physics
Importance and Benefits of Individual/Dual Sports
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Ответ:
Explanation:
It is given that initial speed of car,![v_i=45\ ft/s.](/tpl/images/0375/9343/0064d.png)
Also, final speed of car,![v_f=60\ ft/s.](/tpl/images/0375/9343/e4647.png)
Time taken by the car during this process,![t=5\ s.](/tpl/images/0375/9343/1d7b4.png)
We need to find the acceleration of car, a.
Now, by newton's equation of motion.
We know,![v_f-v_i=a\times t](/tpl/images/0375/9343/a7f46.png)
Putting all required values in above equation.
Therefore, the acceleration by the car during this process is![3\ ft/s^2.](/tpl/images/0375/9343/3550c.png)
Hence, it is the required solution.