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Author Question: Two blocks, joined by a string, have masses of 3.0 and 4.0 kg. They rest on a frictionless ... (Read 90 times)

kwoodring

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on: Jul 28, 2018
Two blocks, joined by a string, have masses of 3.0 and 4.0 kg. They rest on a frictionless horizontal surface. A second string, attached only to the 4.0-kg block, has horizontal force = 40 N applied to it. Both blocks accelerate. Find the tension in the string between the blocks.
 a. 23 N
  b. 5.7 N
  c. 17 N
  d. 93 N
  e. 120 N

Question 2

A box slides up an incline with an angle of elevation . When the box reaches its maximum distance up the incline it stops and does not slide down the incline due to friction. What is the minimum value of the coefficient of static friction for this to occur?
 a. s = tan b. s = sin
  c. s = cos d. s = 1


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underwood14

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

c

Answer to Question 2

a


kwoodring

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

Joy Chen

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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