SAT, 27.10.2021 06:00 akimadixon13

forensic scientists can determine the speed at which a rifle fires a bullet by shooting horizontally into a heavy block hanging by a wire. as the bullet embeds itself in the block, the block and embedded bullet swing up; the impact speed is determined from the maximum angle of the swing. assume the bullets enter the block right after leaving the muzzle of the rifle.

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