(Requested by Marie)
Q-1 The length of the uncompressed spring is 11.0 cm. The diameter of the wire used to make the spring has been measured using a micrometer screw gauge and has a value of 1.60 mm. The spring has twelve complete turns. When the spring is compressed, the coils are all touching. Calculate the length of the spring when it is fully compressed.
Q-2 The energy stored in a spring compressed by a distance x is ½ kx2, where k is the spring constant. Use the principle of conservation of energy to find the speed v at which the ball bearing leaves the compressed spring.
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