Asked by Lexi
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?
Answers
Answered by
PhysicsPro
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.
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.
Answered by
Lexi
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?
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?
Answered by
PhysicsPro
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 (:
My guess is you didn't take [4(pi)SA^3] when finding F (:
Answered by
Lexi
Thank you so much!!! This problem gave me a headache!
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