Ch 2 Part B Begin Date 2 3 2020 12 00 00 5 Problem 12 A Motorist In Spain Is On A Street That Has A Posted Speed L 1 (243.42 KiB) Viewed 31 times
Ch 2 Part B Begin Date 2 3 2020 12 00 00 5 Problem 12 A Motorist In Spain Is On A Street That Has A Posted Speed L 2 (248.09 KiB) Viewed 31 times
Ch. 2 part B Begin Date: 2/3/2020 12.00.00 (5%) Problem 12: A motorist in Spain is on a street that has a posted speed limit of Vm = 75 km/hr and is traveling in excess of the speed limit by ve = 17 km/hr. A SUV pulls out of a parking place into the street in front of the motorist d = 22 m in front of the motorist and stops there. The motorist immediately slams on the brakes and begins decelerating at a rate of ab = 4.8 m/s2
25% Part(a) By what conversion factor do you need to multiply a speed expressed in kilometers per hour in order to obtain the value of that speed expressed in meters per second? X-S/18 x -0.2778 ✓ Correct! * 25% Part (b) Select an expression (using the variables provided) for the minimum distance, d, the motorist would need to come to a complet stop. de + V Feedback: is available X Incorrect A 25% Part(e) Enter an expression for the time, I, it will take the motorist to come to a stop after applying the brakes, in terms of the defined quantities 25% Part (d) How fast, in meters per second, is the motorist traveling when he hits the SUV in front of him? Grade Summary Deductions Potential 100
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