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A 1000kg automobile is at rest at a traffic signal. At the instant the light turns green, the automobile starts to move with constant acceleration of 4.0m/s^2. At the same time a 2000kg truck, traveling at a constant speed of 8.0 m/s^2, overtakes and passes the automobile. (a) How far is the com of the of the automobile - truck system from he traffic light at t= 3.0s ? (b) What is the speed of the com then?
What mass of water (at 4.0 degrees C) can be contained in a rectangular box whose dimensions are 10.0 com by 5.00cm by 1.00cm? the density of water at 4.0degrees C is 1.000*10^3kg/m^3.
A car with mass 1140 kg crashes into a wall.The carâs velocity immediately before the col-lision was 11.2 m/s and the bumper is com-pressed like a spring with spring constant1.14 Ã 107 N/m.What is the maximum deformation of thebumper for this collision?Answer in units of m.