IP A 0.450kg block of wood hangs from the ceiling by a string, and a 7.00×10^-2 kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5.75 m/s. The wad of putty sticks to the block.
Is the mechanical energy of this system conserved?
How high does the putty-block system rise above the original position of the block?