Ball bearing is a device which usually converts: (a) rolling friction into sliding friction (b) static friction into sliding friction (c) sliding friction into rolling friction (d) rolling friction into static friction
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Q2
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction
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Q3
Pl ans q57 with reason.
Q.57. Ball bearings are used to
(A) Convert static to dynamic friction
(B) Convert limiting to dynamic friction
(C) Convert sliding to rolling friction
(D) Convert rolling friction to fluid friction
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Q4
Which of the following statements is incorrect? (a) static friction is greater than rolling friction (b) sliding friction is less than rolling friction (c) rolling friction is less than static friction (d) static friction is greater than sliding friction
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Q5
Ball bearings use rolling friction instead of sliding friction.
