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Physics, 14.09.2019 09:30 harris435942
Say you want to know the change in kinetic energy of a ball. you measure its mass, m, its intial velocity, v1, its final velocity, v2, and uncertainties on all of these values: om, op, and ou, respectively. the formula for the change in kinetic energy, ak, is given by ak = m(uz - vÃ). (a) first write oak in terms of įm, 01/2m, (vź – vÃ), and 0(13- (b) write 01/2m in terms of om (this should be very easy). (c) write (3-w) in terms of uź - vÃ), vÃ, vž, ? , and 0. (d) now write oz in terms of vi and ovi. (e) write uz in terms of v2 and 02 (you should be able to write this down without thinking based on your previous answer). (f) now put all your answers together and express oak in terms of m, 01, 02, 0m, oui, and ouz.
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Say you want to know the change in kinetic energy of a ball. you measure its mass, m, its intial vel...
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