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Unformatted text preview: torque in –Z direction straight line for torque. X and Y components of angular momentum = 0. magnitude of angular momentum = 7.35 kg m 2 /s at t = 0 sec. magnitude of angular momentum = 14.7 kg m 2 /s at t = 1 sec. angular momentum in –Z direction parabola for angular momentum with increasing magnitude of slope. l z (kg m^2/s) t (s) 1.0 τ z ( N m ) t (s) 1.07.3514.714.7 Part C Must show work to receive credit. C1 24 points Cons. of mech. energy, then onedim elastic collision, then cons. of mech. energy. m 1 g r = ½ m 1 v 2 → v = √(2 g r) v 1 = (1–3)/(1+3) v = ½ v = ½ √(2 g r) → h 1 = ½ m 1 v 1 2 / (m 1 g) = ¼ r = 25 cm v 2 = (2)/(1+3) v = +½ v = +½ √(2 g r) → h 2 = ½ m 2 v 2 2 / (m 2 g) = ¼ r = 25 cm...
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 Spring '08
 Grassers
 Energy, Force, Kinetic Energy, Momentum, Work, vy

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