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4-106 A and B are two identical blocks o...

4-106 A and B are two identical blocks of same mass 2m and same physical dimensions as shown in figure-4.158. A is placed over the block B which is attached to one end of the spring of natural length / and spring constant k. The other end of the spring is attached to a wall. The system is resting on a smooth horizontal surface with the spring in the relaxed state. A small object of mass m moving horizontally with speed v at a height d above the horizontal surface hits the block B along the line of their centre of mass in a perfectly elastic collision. There is no friction between A and B. 120 m v B 600000000000000 Figure 4.158 (a) Find the minimum value of v (say v) such that the block A will topple over block B. (b) What is the energy stored in the spring when the blocks A and B returns to their initial position as before collision ? Ans. [(a) v = 34, ) () Zero

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