Chu Posted October 5, 2017 Share Posted October 5, 2017 A car travelling at 30mph accelerates at a rate of -10 miles per hour per second. How long does it take to come to a stop? What is the car’s average speed during that time? How far does the car travel during that time? (b) A car travelling at 60mph accelerates at the same rate. How far does it travel before coming to a stop? How does this compare to your answer for part (a)? Can someone please show me how to solve this. I know the answers, I just want to know how to perform this problem. Thanks! Link to comment Share on other sites More sharing options...
mathematic Posted October 6, 2017 Share Posted October 6, 2017 Basic equation: v=v_0+at and solve for t. v=0 (stop), v_0=30, a= -10. For the second question v_0=60. To get distance traveled, integrate v(t) from time t=0 to time t=stop. Link to comment Share on other sites More sharing options...
Chu Posted October 6, 2017 Author Share Posted October 6, 2017 Thank you! Link to comment Share on other sites More sharing options...
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