ch10-p102 - 102. (a) The linear speed at t = 15.0 s is v =...

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102. (a) The linear speed at t = 15.0 s is va t t == = 0.500m s s m s 2 150 7 50 di b g ... The radial (centripetal) acceleration at that moment is a v r r = 2 2 750 30 0 . . . ms m 1.875m s 2 bg Thus, the net acceleration has magnitude: aa a tr =+ = + = 22 0500 1875 194 . 2 c h c h (b) We note that GG av t || . Therefore, the angle between
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