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3. A 0.5 kg object moves along a straight line. The net force acting on the object varies with its displacement as shown by the graph on the next page. The object starts from rest at x = 0 and travels a total distance of 20 m. 5 4 Force 2 6 8 10 1214 16 18 2022 Displacement (m) each of the following: (a) the acceleration of the object at x-6 m (b) the time needed for the object to move its first 16 m (c) the net work done in displacing the object 20 m (d) the objects speed at x 20 m

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b From Kinenatie quahin ら e) Avea under the Cuwe The nef wove done ny 2(4 LJ) -116.9 m/s

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