Two blocks m1 and m2 are placed on a smooth horizontal surface; and are joined together with a spring of stiffness k as shown in the figure. Suddenly, the block m2 receives a horizontal velocity v0
A
v0√m1m2m1+m2
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B
v0√2m1m2(m1+m2)k
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C
v0√m1m22(m1+m2)k
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D
v0√m1m2(m1+m2)k
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Solution
The correct option is Dv0√m1m2(m1+m2)k Let x= maximum elongation of sprilng
Change of kinetic energy=Potential stored in spring