100_Physics ProblemsTechnical Physics

100_Physics ProblemsTechnical Physics - Chapter 4 101...

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Chapter 4 101 Additional Problems *P4.47 (a) The speed at the top is vv xi i == ° = cos cos θ 143 45 101 ms bg . (b) In free fall the plane reaches altitude given by a y y y y yf yi y f i f f 22 2 3 2 0 143 45 2 9 8 31 000 31 000 522 328 1 327 10 =+ + F H G I K J di ej f t ft m ft m ft 2 sin . . .. (c) For the whole free fall motion vva t yf yi y −= +− = 101 101 9 8 20 6 s 2 . . t t (d) a v r c = 2 va r c = 0898 4130 180 , m 2 P4.48 At any time t , the two drops have identical y -coordinates. The distance between the two drops is then just twice the magnitude of the horizontal displacement either drop has undergone. Therefore, dx t v t v t v t xi
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