Question

F12-18. A particle travels along a straight-line path y 0.5x. If the x component of the particle's velocity is vr= (2) m/s, where t is in seconds, determine the magnitude of the particle's velocity and acceleration when = 4 s. y =0.5x Prob. F12-18 F12-19. A particle is traveling along the parabolic path y 0.25x. If x 8 m. , 8 m/s, and a, 4 m/s2 when 2 s. determine the magnitude of the particle's velocity and acceleration at this instant.

Answer 1

Poge NO-0 Solution Given tRat tsovels alorg patice - lino poth y- 05Y. A stsaighd poxtida 6 velocity is v^- (2tJms Comporant ef to Selode chere dont4s Vx dt 2t d dt dM2t dt -(') dr dt (2) dy 05 dx ( 3 aS dy tdt de 32/S (323406) velocgy ho'f 35. 7 m/s -

Poge NO B) dt) = 4t dt Al Aydlt dt Ax = Alteloation 320