(a) State and explain Ne wton's first law of motion. (b) The shortest configuration of the string joining three given points is the one shown in Fig. 1 where all the angles are 120, Explain how you could experimentally prove this fact by cutting three holes in a table and making use of three equal masses attached to the ercs of the strings, the other ends of which are connected as shown in fig. 2. om om om/ Fig. 2 Fig. 1 (c) A small mass rests on top of a fixed frictionless sphere Te uaSs is given a tiny kick and slides downwards. At what point does it lose contact with the sphere?