Questions
Two springs of force constant 100 N/m and 150 N/m are in series as shown. The block is pulled by a distance of 2.5 cm to the right from equilibrium position. What is the ratio of work done on the spring at left to the work done on the spring at right?
detailed solution
Correct option is A
Wleft spring=12k1e12= F22k1Wright spring=12k2e22=F22K2WleftWright=k2k1=150100=32Similar Questions
Two similar springs P and Q have spring constants such that Kp > . They are stretched first by the same amount (case a), then by the same force (case b). The work done by the springs are related as, in case (a) and case (b), respectively.
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