Question

lonter 20 grams B Shat a rifle woorn bleck, slarking (0) A bullet of bariTontallyale fuith a velor ity of 135 mkn it pe mejralo a depih 0l bocm befere sloppang. CA) wht s the kinedere Erel lot the buillef besfon it stribes lis the momenta of the bullet before if str ke Hae block Mass depih the blocje. B) awhat

Answer 1

IS V = 150 m/s ? a) Kinette energy of the Buller before striking the Block K = 2 m v0 = 2x0.02x1507 = 225 Joules / b) Momentum of Bollet before striking the Block - P= mv = (20x10°3) (150) = 3 kg-mis C) From Kinemotic equation- V vrtzad. se When the Buller Drops = v=0 SABO => 0= 1562 + 2x0x 0.6 Q=-1502 =-18750 m/s2 2x06 Stopping force | Fl= mel = (20x103) (18750) = 375 N d) from Vavorat 0 = 150 +1-18750)+ t=10.0085 (or) 8 ms )