Question

PRINTER VERSON 4BACK Chapter 4, Problem 4/080 A 69-g bullet is fired horizontally with a velocity v-335 m/s into the slender bar of a 1.6-ko pendulum initially at rest. If the bullet embeds itself in the bar, compute the resulting angular velocity of the pendulum immediately after the impact. Treat the sphere as a particle and neglect the mass of the rod. Why is the finear momentum of the system not conserved? 325 mm 69 q 170 mm 1.6 kg Before After rad/sec Answer: a-

Answer 1

Solutionn Given A Ka 325mm M = 6 335m/s velecity of 70 mm 335 M E Here, there is extenal force applied torqua at the centre of mo is Bullet is not shiking of the selender mass ba, hence apply conservation of Linegr Camnot we direction velocity momentum since changing is before and after impact Thus of oppliy conservahion we have t angular momentum. ofbullet abou (A) Angular momentu m 0.069 x 33S x 0 0-325 momentum after impact Angular Here 325401 0.069x0.325 .6 X (0.325+017) Isphere 0.4 un uruou ynbno bupuoog d/sAns O.4XU O.069 x 335 XD.325 /8 78