Question

22. The eraser gets smaller and smaller as you use it
more and more. Explain the reason.
Q. It is difficult to open an ink pot with greasy or oily hands. Explain
Q. It is difficult to walk on wet road. Explain
Q. Arrange the following in descending order of magnitude:(I) static force (ii) sliding force and (iii) rolling force ?
Q. A body needs force F1 just to start motion on a surface,a force F2to continue its motion and a force F3 to roll on the surface. What is (I) the static friction (ii) sliding force (iii) rolling friction? State whether F2 is equal,less than or greater than (I) F1 and (ii) F3.
Q. Friction is a necessity and also acts as an evil. Explain

Answer 1

Answer:

njopppppigf9yxy89cyy9cy9cyc