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Author Question: Its more difficult to start moving a heavy carton from rest than it is to keep pushing it with ... (Read 19 times)

Tirant22

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Its more difficult to start moving a heavy carton from rest than it is to keep pushing it with constant velocity, because
 
  A) The normal force is greater when the carton is at rest.
  B) s < k.
  C) Initially, the normal force is not perpendicular to the applied force.
  D) k < s.
  E) s = k.

Question 2

A straight wire 20 cm long, carrying a current of 4 A, is in a uniform magnetic field of 0.6 T. What is the force on the wire when it is at an angle of 30 with respect to the field?
 
  A) 0.2 N
  B) 0.3 N
  C) 0.4 N
  D) 0.5 N
  E) 0.6 N



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aruss1303

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Answer to Question 1

D

Answer to Question 2

A




Tirant22

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Reply 2 on: Jul 29, 2018
Excellent


meganmoser117

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Reply 3 on: Yesterday
:D TYSM

 

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