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Question 1: An airplane is flying horizontally with speed 1000km/h. (280m/s) when an engine falls off. Neglecting air resistance, assume it takes 30s for the engine to hit the ground. (a). How high is the airplane? My answer to question 1: S = ut+(1/2)at^2 S = 0*t+(1/2)*9.80*(30)^2 S = 4410...

A 10000N vehicle is stalled one quarter of the way across the bridge? Calculate the additional reaction forces that one supplied at the supports on both ends of the bridge.