Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Find reliable answers to your questions from a wide community of knowledgeable experts on our user-friendly Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Car drives uphill at 40 km/h and then back downhill at 60 km/h. what is the average speed for the round trip?

Sagot :

Answer:

48 km/hr

Explanation:

These are often calculated incorrectly because TIME is ignored

time = distance / rate

               uphill =  d / 40       downhill = d/60

average rate =   distance / time

                      =   2d / ( d/40 + d/60)              2d is uphill + downhill

                        = 2 / ( 1/40 + 1/60 ) =   48 km/hr

Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.