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Physics, 16.02.2022 21:30 Tempo30

You are to drive to an interview in another town, at a distance of 280 km on an expressway. The interview is at 11:15 a. m. You plan to drive at 100 km/h, so you leave at 8:00 a. m. to allow some extra time. You drive at that speed for the first 100 km, but then construction work forces you to slow to 40.0 km/h for 43.0 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview

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