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Author Question: The figure shows two forces acting at right angles on an object. They have magnitudes = 6.3 N and = ... (Read 226 times)

jrubin

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on: Jul 29, 2018
The figure shows two forces acting at right angles on an object. They have magnitudes = 6.3 N and = 2.1 N. What third force will cause the object to be in equilibrium (acceleration equals zero)?
 
  A) 6.6 N at 162 counterclockwise from 1
  B) 6.6 N at 108 counterclockwise from 1
  C) 4.2 N at 162 counterclockwise from 1
  D) 4.2 N at 108 counterclockwise from 1

Question 2

A child on a sled starts from rest at the top of a 15 slope. If the trip to the bottom takes how long is the slope? Assume that frictional forces may be neglected.
 
  A) 293 m
  B) 586 m
  C) 1130 m
  D) 147 m


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Dunkey

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

Answer: A

Answer to Question 2

Answer: A


jrubin

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

yeungji

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Reply 3 on: Yesterday
Excellent

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