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Author Question: A car of mass m goes around a banked curve of radius r with speed v. If the road is frictionless ... (Read 130 times)

danielfitts88

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on: Jul 29, 2018
A car of mass m goes around a banked curve of radius r with speed v.
 
  If the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to A)
 
  mg/2.
 
  B)
 
  mg.
 
  C)
 
  mg sin .
 
  D)
 
  mv2/r.
 
  E)
 
  tanv2/(rg).

Question 2

Materials in which the resistivity becomes essentially zero at very low temperatures are referred to as
 
  A)
 
  conductors.
  B)
 
  insulators.
  C)
 
  semiconductors.
  D)
 
  superconductors.


gabrielle_lawrence

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

D

Answer to Question 2

D


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