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SEARCH Inspection of Equation (7) also shows that the range also depends on the square of the speed of release. In the case of the hammer, the athlete must combine good speed of release with an inclination as close as possible to 45 degrees. Do research about the work of the athlete in an attempt to get a higher launch speed. Just to reflect on the considerations made about the hammer throw, read text placed in sequence. We had assumed that the air through which the hammer moves, had no influence on their movement, a reasonable assumption for low speeds. However, as the speed increases, the discrepancy between our calculations and the actual movementbecomes large. It may seem surprising, but no physics problem can be solved exactly, regardless of the number of significant figures that the calculated answer may contain. The calculation of the orbit of the moon involves hours and hours of computer use, and - though these results are impressive and very good for all practical applications - never can say that they are accurate. It is always necessary to make approximations in solving problems. The physicist PAM Dirac (1902 1984) said that the trick is to divide the problem into two parts, one of which is simple and one small. You then solves the first part and just do the best possible with the small part. Sometimes the "small" part is small enough so as to be completely disregarded, as we did with the air at low speeds. (Adapted from Halliday and Resnick, 1994, p. 55). DEBATE In our studies, we obtained an approximation to the horizontal reach the hammer throw. Note, an approximation. Discuss with your classmates and teacher about the limitations of the equation obtained. What would be the influence of air resistance on the range? Would it matter if the release was done at sea level or in a region of higher altitude? Trajectories and trajectories Does the path of the hammer is always the most economical in some aspect? Why the parable is well behaved? Why not hammer out doing "cartwheels"? This happens for the same reason you always looking for the shortest paths to get from one place to another.
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TRAŽI Inspekcija jednadžbe (7) također pokazuje da je raspon ovisi o kvadratu brzine izdanju. U slučaju čekića, sportaš mora kombinirati dobru brzinu izdanju s nagibom što bliže do 45 stupnjeva. Da li istraživanja o radu sportaš u pokušaju da se veći pokretanje brzinu. Samo se odražavaju na razmatranje koja o kladivo, pročitati tekst stavljen u slijedu. Imali smo pretpostavili da je zrak kroz koji se kreće kladiva, nije imao nikakva utjecaja na njihov pokret, razumna pretpostavka za malim brzinama. Međutim, kako se brzina povećava, raskorak između našim izračunima i stvarnog pokretapostaje velik. Možda se čini čudno, ali ne i fizika se problem može riješiti točno, neovisno o broju značajnih likova koji izračunava odgovor može sadržavati. Izračun orbite Mjeseca uključuje sate i sate korištenje računala, a - iako ovi rezultati su impresivni i vrlo dobra za sve praktične primjene - nikad ne možete reći da su točni. Uvijek je potrebno napraviti aproksimacije u rješavanju problema. Fizičar PAM Dirac (1902 1984) je rekao da je trik je podijeliti problema u dva dijela, od kojih je jedan jednostavan i jedna mala. Nakon toga rješava prvi dio i samo učiniti najbolje moguće s malim dijelom. Ponekad se "mali" dio je dovoljno mali tako da se potpuno zanemariti, kao što smo učinili sa zrakom pri malim brzinama. (Preuzeto iz Halliday i Resnick, 1994, str. 55). DEBATA U našim istraživanjima, dobili smo približnu na horizontalnoj Reach kladivo. Napomena, aproksimacija. Razgovarajte sa svojim kolegama i nastavnika o ograničenosti jednadžbe dobivene. Što će biti utjecaj otpora zraka na području? Bi li to bitno ako je release je učinjeno na razini mora ili u regiji višoj nadmorskoj visini? Putevi i putanje Je li put od čekića je uvijek najisplativije u nekom aspektu? Zašto prispodoba dobro ponašao? Zašto ne istucite radi "cartwheels"? To se događa zbog istog razloga, uvijek u potrazi za najkraćih puteva da se s jednog mjesta na drugo.