Recent content by Spraypaint

Ok, so I finally found the solution, and it's something pretty stupid that I never thought of. k the spring constant is given, then everything else is simple.

Homework Statement A movie stuntman (mass 81.8 kg) stands on a window ledge 7.33 m above the floor. Grabbing a rope attached to a chandelier, he swings down to grapple with the movie’s villain (mass 66.4 kg), who is standing directly under the chandelier. (Assume that the stuntman’s center...

Homework Statement A rifle bullet of mass 7.2 grams strikes and embeds itself in a block with mass 0.819 kg that rests on a frictionless horizontal surface and is attached to a coil spring. The impact compresses the spring 17 centimeters. Calibration of the spring shows that a force of 0.68...

Thank you guys, it makes sense, you surely made my day. =)

[edit] Sorry, I think I understand now. I should do a(2,3,4) + b(1,5,1) + c(-1,1,1), and use the a,b,c values I got from the other part to solve for L(1,2,3), right?

So going on with this idea, you would get three equations ( a + b - c, a - b + c, -a +b +c). Do you set this equal to 1,2,3? Or am I completely off?

So my understanding of the question is to find how the linear transformation in this problem is defined, and use that to solve for L(1,2,3). Is this wrong?

Homework Statement Let L: R^3 -> R^3 be a linear operator. Given that L(1,1,-1)^T = (2,3,4)^T, L(1,-1,1)^T = (1,5,1)^T, and L(-1,1,1)^T = (2,0,0)^T, Compute L(1,2,3)^T. Justify your answer. Homework Equations None. The Attempt at a Solution I honestly do not really have a clue. I...