Work, Power and EnergyHard

Question

Length of a spring of force constant k in its unstretched condition is l. The spring is cut into two parts which have their unstretched lengths in the ratio l1 : l2 = : 1. Force constants of the two parts k1 and k2 are then:-

Options

A.k(q + 1), kq
B.k , kq
C.k , k(q + 1)
D.k , k

Solution

Given
or l = l1 = l2

K1 =

K2 = K (q  + 1)K

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