Define static friction
1)define friction
2)what is interlocking
3)explain lubricants
4)define rolling friction,sliding friction,static friction
in3 lines
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
static friction is than sliding friction
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