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Author Question: Plane A is flying at 440 mph in the northeast direction relative to the Earth. Plane B is flying at ... (Read 502 times)

LaDunn

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on: Jul 28, 2018
Plane A is flying at 440 mph in the northeast direction relative to the Earth. Plane B is flying at 550 mph in the north direction relative to the Earth. What is the speed of Plane B as observed from Plane A?
 a. 570 mph
  b. 916 mph
  c. 392 mph
  d. 704 mph
  e. 714 mph

Question 2

A boat travels upstream and after one hour has gone 10 km. The boat next travels downstream and after one hour has gone 18 km. If the boat's speed relative to the water is constant, what is the speed of the current in the river?
 a. 3 km/h
  b. 4 km/h
  c. 5 km/h
  d. 6 km/h
  e. 7 km/h


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ms_sulzle

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


LaDunn

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Reply #2 on: Jul 28, 2018
Thanks


ms_sulzle

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Reply #3 on: Jul 28, 2018
Welcome :)


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