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Author Question: A 250-kg motorcycle goes around an unbanked turn of radius 13.7 m at a steady 96.5 km/h. What is the ... (Read 123 times)

yoooooman

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on: Jul 29, 2018
A 250-kg motorcycle goes around an unbanked turn of radius 13.7 m at a steady 96.5 km/h. What is the magnitude of the net force on the motorcycle?
 
  A) 719 N
  B) 2.95  103 N
  C) 1.31  104 N
  D) 4.31  104 N

Question 2

Two spaceships approach each other along a straight line at a constant relative velocity of 0.9880c as measured by the captain of one of the ships. An observer on Earth is able to measure the speed of only one of the ships as 0.9000c.
 
  From the point of view of the observer on Earth, what is the speed of the other ship in terms of the speed of light?


qytan

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

0.794c


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