Answer questions

 Why do gymnasts use bottom mats that are very condensed?   Why does a basecircle catcher's mitt feel more padding than a stipulated glove?  You feel a companion who says that succeeding a golf circle collides behind a while a bowling circle at security, although the accelerate gained by the bowling circle is very minute, its momentum exceeds the moderate momentum of the golf circle. Your companion raise asserts this is akin to the "negative" momentum of the golf circle succeeding clash. Another companion says this is hogwash-that momentum keeping would be violated. Which companion do you conform behind a while?   Explain how "elastic immanent ardor" dramatically alterable the pastime of pole vaulting when indulgent fiberglass poles replaced stiffer wooden poles.   Suppose that you and two classmates are discussing the scheme of a roller coaster. One classmate says that each culmination must be inferior than the former one. Your other classmate says this is folly, for as hanker as the primary one is the first, it doesn't substance what summit the others are. What do you say?   An debile agent is said to "waste ardor." Does this balance that ardor is substantially lost? Explain.  Please vindication each topic in at last 500 words