Answer Happy

Consider the popqgun in the figure below. The launching mechanism consists of a trigger-released spring. The spring is compressed to a position ya and the trigger is fired. The projectile of mass m rises to a position ye above the position at which it leaves the spring, indicated in the figure as position Y-0. Consider a firing of the gun for which m 37.0 g. -0,140 m, and ye 21.0 m. Suppose, however, there is a friction force of magnitude 2.20 N acting on the projectile as it rubs against the interior of the barrel. The vertical length from point to the end of the barrel is 0.420 m. (Hint: you may need to calculate the spring constant from the information given.)
(B) O 30 (a) After the spring is compressed and the popgun fired, to what height does the projectile rise above point? 9.452 x m