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Mini Exercise
1. How much force you need to prevent the book from falling?
2. Which is action?
3. Is there any reaction? If yes, then what is its direction?
4. Which shoe offer less friction?
5. Which shoe is better for walking on dry track?
6. Which shoe is better for jogging?
7. Which sole will wear out early?
8. Why is it easy to roll a cylindrical eraser on a paper sheet than to slide it?
9. Do we roll or slide the eraser to remove the pencil work from our notebook?
10. In which case do you need smaller force and why?
11. In which case is it easy for the tire to roll over?