102_Physics ProblemsTechnical Physics

102_Physics ProblemsTechnical Physics - Chapter 4 P4.52 (a)...

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Chapter 4 103 P4.52 (a) The moon’s gravitational acceleration is the probe’s centripetal acceleration: (For the moon’s radius, see end papers of text.) a v r v v = = × = 2 2 6 6 1 6 980 174 10 284 10 169 . . .. ±ms m ms k m s 2 22 ej (b) v r T = 2 π T r v == × × = 2 2 1 74 10 647 10 180 6 3 (. m) 1.69 10 m s s h 3 P4.53 (a) a v r c = 2 2 500 100 25 0 . . . m 2 bg ag t . m s 2 (b) See figure to the right. (c) aaa ct =+ = + = 25 0 9 80 26 8 . 2 φ = F H G I K J ° −− tan tan . . . 11 25 0 21 4 a a t c 2 2 FIG. P4.53 P4.54 xv t v t fi x i ° cos . 40 0 Thus, when x f = 10 0 , t v i = ° 10 0
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