Question

24. It is difficult to open an inkpot with greasy or oily
hands. Explain.
25. It is difficult to walk on a wet road. Explain.
28. Arrange the following in descending order of magnitude:(i)static friction (ii) sliding friction (iii) rolling friction
29. Body needs a force F1 just to start motion on a surface ,a force F2 to continue its motion and a force F3 to roll a surface. What is (i) the static friction (ii) sliding friction and (iii) rolling friction? State whether F2 is equal,less than or greater than (i)F1 and (ii) F3
30. Friction is a necessity and also acts as an evil. Explain.

Answer 1

Answer:

hi

Explanation:

Vang ucheg LCD

hi based gash Fang's go two Yangzhou