Rifle and bullet a 0.0275 kg bullet is accelerated from rest to a speed of 530 m/s in a 2.55 kg rifle (which is inititally at rest). the pain of the rifle’s kick is much worse if you hold the gun loosely a few centimeters from your shoulder rather than holding it tightly against your shoulder.

(a) take the bullet's velocity as positive. calculate the recoil velocity (in m/s) (with a proper sign) of the rifle if it is held loosely away from the shoulder. 0 m/s incorrect (0.0%) (4 attempts remaining)input 1 statusincorrect (0.0%)4 attempts remaining.
(b) how much kinetic energy (in joules) does the rifle gain? 0 j incorrect (0.0%) (4 attempts remaining)input 2 statusincorrect (0.0%)4 attempts remaining.
(c) what is the recoil velocity (in m/s) if the rifle is held tightly against the shoulder, making the effective mass 27.55 kg? 0 m/s incorrect (0.0%) (4 attempts remaining)input 3 statusincorrect (0.0%)4 attempts remaining.
(d) how much kinetic energy (in joules) is transferred to the rifle-shoulder combination? the pain is related to the amount of kinetic energy, which is significantly less in this latter situation. 0 j