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A wooden block of mass 10 g is dropped f...

A wooden block of mass `10 g` is dropped from the top of a tower `100 m` high. Simultaneously, a bullet of mass `10 g` is fired from the foot of the tower vertically upwards with a velocity of `100 m//s`. If the bullet is embedded in it, how high will the block rise above the top of tower before it starts falling? `(g=10m//s^2)`

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