Question

You are to drive 300 km to an interview. 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 km/h for 40 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview?

Name: you are to drive 300 km to an interview the interview is at 1115 am you plan to drive at 100 kmh so you leave at 800 am to allow some extra timeyou drive at that speed for the first 100 km b 42273
Uploaded: 2021-07-16T12:57:25-08:00
Duration: 2 min 25 s
Channel: Donald Albin
Description: you are to drive 300 km to an interview the interview is at 1115 am you plan to drive at 100 kmh so you leave at 800 am to allow some extra timeyou drive at that speed for the first 100 km b 42273

          You are to drive 300 km to an interview. 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 km/h for 40 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview?

Added by Sabrina H.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Donald Albin

07/16/2021

Step 1

\[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} = \frac{100 \text{ km}}{100 \text{ km/h}} = 1 \text{ hour} \] Show more…

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You are to drive 300 km to an interview. 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 km/h for 40 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview?