If a completely cylindrical bar with a mass of 5000kg is flung into a wall with a surface area of 500un^2 and is morphed into a square at 50NMC/m at 40 degrees tangent to the area of initial impact. What is the length of the sides?

Answer 1

Third year?
Try drawing all the vectors and their rates for EACH stage and see if that helps.
Your final answer should be:
24.2m
If you still can't get it don't be afraid to ask for an explanation.

Answer 2

I get:
VecA=40m/s
VecB=62.2m/s
VecC=33.4m/s
VecD=199.3m/s
all at E of S of the radius

Then
VecE=27.8m/s at N of W
And
VecF=101.1m/s in a linear spiral

Final= 1.87m
Which of my vectors are wrong?

Answer 3

Your F stage vector should be 784.3m/s in a spiral is correct.

My guess is you didn't take [4(pi)SA^3] when finding F (:

Answer 4

Thank you so much!!! This problem gave me a headache!