You need to drive 69.7 km (43.3 miles) for an interview. The interview is at 11:15 am, you leave at 10:00 am and you plan to drive at 100 km/h for the first 30 km, but then it is the 91 you're driving on so of course you hit traffic and have to slow down. For the next 30 km you drive at 40 km/h. What would be the least speed you would need to drive at for the rest of the trip to arrive on time to the interview?
You need to drive 69.7 km (43.3 miles) for an interview. The interview is at 11:15 am, you leave at 10:00 am and you plan to drive at 100 km/h for the first 30 km, but then it is the 91 you're driving on so of course you hit traffic and have to slow down. For the next 30 km you drive at 40 km/h. What would be the least speed you would need to drive at for the rest of the trip to arrive on time to the interview?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 13P: A person lakes a trip, driving with a constant speed of 89.5 km/h, except, for a 22.0-min rest stop....
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