PHY 101 Chapter Notes -Volt-Ampere, Headon
2 Dec 2014
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6. 22 (a) the mass of the rifle is gives or and. We choose the direction of the bullet"s motion to be negative. Then, conservation of momentum (b) the mass of the man plus rifle is. Aviftpm v 70. 0 kg5. 20 ms0364 kgmsim v2av364 kgms438 kgms0. 832 sift av438 n directed forward f230 n30 kg9. 80 ms9. 8wmg rifleriflebulletbulletrifleriflebulletbulletfimmmm vvvv 3rifle309. 8 kg5. 010 kg300 ms00 v 3rifle9. 85. 010 kg300 ms0. 49 ms30 kg v. We use the same approach as in (a), to find. Consider a system consisting of arrow and target from the instant just before impact until the instant after the arrow emerges from the target. No external horizontal forces act on the system, so total horizontal momentum must be conserved, or. Let us apply conservation of energy to the block from the time just after the bullet has passed through until it reaches maximum height in order to find its speed v just after the collision. becomes or.
