Answers

2014-08-04T15:18:11+08:00
X = distance, t = time, v= initial velocity, a = acceleration; Assuming the cat is at rest before the fall; A. x = vt - (1/2)at^2; x = (0 m/s)(2 s) - (1/2)(9.8 m/s^2)(2 s)^2; x = - 19.6 m (ignore the negative sign. It just means that the cat fell downwards); B. V = Initial Velocity + at; V = (0 m/s) + (-9.8 m/s^2)(2 s); V = -19.6 m/s; C. Ave. Speed = (V - Initial Velocity); Ave. Speed = 19.6 m/s - 0 m/s; Ave. Speed = 19.6 m/s
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