ARTSSCI 2D06 Quiz: Arts and Science 2D06 Quiz 3 2013
9 Jan 2019
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Nb: mark values are given in brackets [ ] beside each problem. Write all your answers on the quiz paper. Solution for quadratic equation: centripetal ac = v2/r x = ( b linear k. e. G = 6. 67 10 11 n m2/kg2 (newton"s law of gravity constant) Me = 5. 98 1024 kg (mass of earth) Re = 6. 37 106 m (radius of earth) Consider two satellites a and b circling around the earth in concentric orbits. The distance of satellite a to the centre of the earth is half that of satellite b. Ignoring air resistance, the ratio of the centripetal force acting on b to that acting on a is: (explain/derive your answer in the space provided. : 1, 1/2, 1/2, 1/4, none of the above. Suppose that a rotating disk has a non-uniform angular acceleration given by = The ball"s motion is then interrupted by a peg located at 1 m below the top, as shown in the gure.
