A10g ball is launched straight up in the air using a spring loaded projectile launcher similar to the one you used earlier this semester. the launcher is essentially a hollow tube with a spring inside. the sping length is the same as the tube length , 12cm. when the ball is loaded , the spring is compressed to 4 cm. the diameter of the ball and that of the tube are almost identical such that the ball is in contact with the walls as it moves up the tube. this introduces a 10% energy loss due to friction what is the velocity of the ball when it leaves the launcher? enter your answer in m/s.