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PLease take your time and make sure the answer is correct.You might have seen a similar problem already on answers. DO NOT copyit thinking it is right as it contains different values anddimensions.
3D version of Emely and Morgan's explosion problems: Mtotal Vo MAVA + MBVB + McVc use unit vectors to break velocities into components TA/D=rA-TD= ={-1.5,0,0}-{0,0, 5} {Var, Vay, Vaz} = VA {-1.5,0,-5) V1.52+52 1.5 m 5m 4.5m 2.5m 3m
An 8-kg shell moving with a velocity vo-[10, -12, -395] m/s explodes at Point D into three fragments A, B, and C of mass, respectively, 4 kg, 3 kg, and 1 kg. Knowing that the fragments hit the vertical wall at the points indicated, determine the speed of fragment A immediately after the explosion. Assume that elevation changes due to gravity may be neglected. Given: • Initial mass = 8 kg, initial velocity vo = [10, -12, -395) m/s, explosion at position (0, 0, 5] • mass A = 4 kg, final position of A = (-1.5,0,0) mass B = 3 kg, final position of B = (4.5, 2.5, 0] • mass C = 1 kg, final position of C = [0,-3,0) . Find: · the speed of fragment B immediately after the explosion (m/s) Your Answer: Answer