Jamie+Nagode

1) i) x-xo = 190m; Vmax = 305m/min = 5.0833m/s; Vo = 0m/s; a = (+/-)1.22m/s^2 V = Vmax V^2 = Vo^2 +2a(x-xo) (5.08333m/s)^2 = (0m/s)^2 +2*(1.22m/s^2)*(x-xo) (x-xo) = 10.5903 m ii) V = Vo + a*t t=? 5.08333m/s = 0m/s + (1.22m/s^2)*t t = 4.1666s t total = 2*(4.1666s) = 8.333s

2) i) x-xo = 50m; Vo = 0m/s; a = 9.8m/s^2; t=? x-xo = Vo*t + 0.5*a*t^2 50m = (0m/s)*t + 0.5*(9.8m/s^2)*t^2 t = sqrt (50m/(0.5*(9.8m/s^2))) = 3.19438s ii) Vo(2nd stone) = ? t(2) = t(1) - 1.00s = 2.19438s; a = 9.8m/s^2; x-xo = 50m x-xo = Vo*t + 0.5a*t^2 Vo = ((x-xo) - 0.5a*t^2) / t Vo = (50m - 0.5*(9.8m/s^2)*(2.19438s)^2) / 2.19438s Vo = 12.03297 m/s

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Pelican Problem a) y-yo = 5.4m x-xo = 8m ay = 9.81m/s^2 Vo = Vox Voy = 0m/s y-yo = Voy*t - 0.5*g*t^2 -5.4 = -0.5*9.81*t^2 t = 1.049s x-xo = Vox*t Vox = 8m/1.049s = 7.624m/s

b) y-yo = 2.7m Vo=7.624m/s x-xo = ? -2.7m/s = -0.5*9.8*t^2 t = 0.742s x-xo = 7.624m/s*0.742s = 5.656m