K.C.S.E Physics Q & A - MODEL 2013PP1QN04

K.C.S.E Physics Q & A - MODEL 2013PP1QN04

​An object of weight 20 N attached at the end of a spring causes an extension of 0.5 cm on the spring.
(a) Determine the spring constant of the spring. 
(b) Determine the weight of an object that would cause an extension of 0.86 cm when attached at the end of the same spring.

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