Physics, 21.11.2020 04:40 dianaosorio33895
A car travels at a speed of 55 km/hr and slows down to 10 km/hr in 20 seconds. What is the acceleration?
Answers: 3
![55[\frac{km}{hr}]*\frac{1hr}{3600s}*\frac{1000m}{1km} =15.27[\frac{m}{s} ]\\10[\frac{km}{hr} ]*\frac{1hr}{3600s}*\frac{1000m}{1km} = 2.77[\frac{m}{s} ]](/tpl/images/0920/6083/64f7a.png)
![2.77=15.27-a*(20)\\20*a=12.49\\a = 0.62[m/s^{2}]](/tpl/images/0920/6083/652ec.png)
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A car travels at a speed of 55 km/hr and slows down to 10 km/hr in 20 seconds. What is the accelerat...
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