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Author Question: The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting ... (Read 96 times)

fnuegbu

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on: Jul 28, 2018
The reason that you would use a ramp to carry a weight to the top of a platform, rather than lifting it up a ladder, is because the
 a. force exerted would be less
  b. work done would be less
  c. power expended would be less
  d. gain in potential energy would be more

Question 2

A particle moves along a circular path having a radius of 2.0 m. At an instant when the speed of the particle is equal to 3.0 m/s and changing at the rate of 5.0 m/s2, what is the magnitude of the total acceleration of the particle?
 a. 7.5 m/s2
  b. 6.0 m/s2
  c. 5.4 m/s2
  d. 6.7 m/s2
  e. 4.5 m/s2


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macmac

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

a

Answer to Question 2

D


fnuegbu

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Reply #2 on: Jul 28, 2018
Thanks


macmac

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


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