If $$4$$ kg block is held after $$2$$ s of start then how high $$2$$ kg block will rise from the beginning before coming to rest momentarily?

Question

Infinity Learn · Accepted Answer

velocity acquired by each block after $$2$$ s is $$v=2g3Height$$ attained by $$2$$ kg in $$2$$ s,At the instant the $$4$$ kg block is held, the $$2$$ kg block has attained a velocity of $$2g/3$$ and this block will continue to move upward with constant retardation 'g'. So the further rise of $$2$$ kg block till it comes to rest is given $$byh2$$ $$=$$ $$V2$$ $$/$$ $$2g$$ $$=$$ $$(2g/3)2$$ $$/$$ $$2g$$ $$=$$ $$2g$$ $$/$$ $$9$$.The total height $$=$$ $$h1$$ $$+$$ $$h2$$ $$=$$ $$2g$$ $$/$$ $$3$$ $$+$$ $$2g$$ $$/$$ $$9=$$ $$8g$$ $$/$$ $$9$$

If 4 kg block is held after 2 s of start then how high 2 kg block will rise from the beginning before coming to rest momentarily?

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