• Support PF! Buy your school textbooks, materials and every day products Here!

Multiple FBD Dynamics Problem

1. Homework Statement
The 4-kg uniform rod ABD is attached to the crank BC and is fitted with a small wheel that can roll without friction along a vertical slot. Knowing that at the instant shown crank BC rotates with an angular velocity of 6 rad/s clockwise and an angular acceleration of 15 rad/s^2 counterclockwise, determine the reaction at A.
D1.jpg



2. Homework Equations
Newton's 2nd Law (Shown in FBDs)
Acceleration and velocity kinematic equations
aa = ab + aa/b
va = vb + vc/b


3. The Attempt at a Solution
I've drawn FBDs and written out Newton's 2nd Law, but I'm at a loss on how to write the kinematics equations I need. I know that they involve a cross product, but I don't really know how to use them to make an equation that will come out to all i's and j's. Please help!
D2.jpg

D3.jpg


Thank you.
 

Answers and Replies

Anybody?
 

Related Threads for: Multiple FBD Dynamics Problem

Replies
0
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
5
Views
980
  • Last Post
Replies
0
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
592
  • Last Post
Replies
1
Views
1K
Top