R

Ram Sharma • 193.88K Points
Coach

Q. The number of revolutions per km for a free rolling tyre are less than that calculated from its static radius. This difference in number of revolutions is due to

  • (A) hysteresis of the tyre materials which make the dynamic loaded radius somewhat larger than the static radius
  • (B) forces in the contact area that cause slight forward of the tread
  • (C) either of A and B
  • (D) None of the above
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