PLUS Cutnell, Physics, 10 GENERAL PHYSICS I & II (PHYS 110/112) d, Study & Pract

Question

PLUS Cutnell, Physics, 10 GENERAL PHYSICS I & II (PHYS 110/112) d, Study & Practice Assignment Gradebook ORION Downloadable eT extbook > Open Assignment BACK Chapter 07, Problem 36 GO oject A is mong due east, whie ect B is moving due north. They collide and stick together i·completely inelastic collision. Momentum is conserved. Olbject A has a mass of ma16.2 kg and an initial velocity of VOA -7.02 my/s, due east. Object B, however, has a mass of-.28.7 kg and an nitial velooty or VOB·4.90 m/s, due north, Find the (a) magvtude and (b) direction of the total momentum of the two-ebject system after the colision. (b) 6-Number by accessing tis Question Assistance, you wil leam while you eam points based on the Point Potential Polcy set by your attempts or lessectly in three 8 E R D F G 1 B N

Explanation / Answer

a] total momentum = mAvA + mBvB = 16.2*7.02 i + 28.7*4.9 j

= 113.724 i + 140.63 j

= sqrt(113.724^2+140.63^2)

= 180.86 kg m/s answer

b) theta = arctan(140.63/113.724) = 51.04 degree answer

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