Mathematics, 29.03.2021 01:00, alondris3888
Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres per hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?
Answers: 3
Mathematics, 21.06.2019 18:00, justijust500
Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.
Answers: 3
Mathematics, 21.06.2019 19:30, markel19
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
Two trains on opposite tracks leave the same station at the same time. One train travels at an avera...
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