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Q17 (15 points): As shown in the figure, a 5.00 g bullet is fired into a 920 g block attached to the end of a 75.0 cm uniform rod of mass 350 g. The block-rod-bullet) system then rotates in the horizontal plane of the figure, about a fixed axis at A. Treat the block as a point particle. a) Calculate the rotational inertia of the (block-rod-bullet; system about point A b) If the angular speed of the system about point A just after impact is 6.40 rad/s, what is the bullets speed just before impact? (The rotational inertia of a thin rod of mass M and length L, rotating about one end is 1/3 ML2 Answer: a) 0.586 kgim2 b) 1000 m/s Rod Block Bullet

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) Moment 엎 Inedia.ol.I MTe block about A MI bullet aboudt A Bu about point A is 2. 匚osse + 0.920 +0.005 10-75) [0-117 +0,920+0.005 x(0.792 3 = cim Aat V ba the Velooty bullet eit 뭐-Leitweg.nnus Collision veloci& Velocity -end el-Had-in y . 2 V E028 31,1056께직 3

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