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fgiga [73]
4 years ago
6

The generalized coordinates selected for the compound pendulum are the x, y coordinates of the lower end and the rotation angle

of the upper bar. Perform a kinematical analysis to derive the velocity constraint equation relating these variables. Then perform a geometrical analysis of position to derive the configuration constraint. Prove that differentiating the configuration constraint leads to the velocity constraint.

Physics
1 answer:
Zinaida [17]4 years ago
3 0

Answer:

x22.=L1cosθ1θ1. + L2cosθ2θ2.

y22.=-L1sinθ1.θ1. + L2sinθ2.θ2.

θ1.=θ1.+θ1..dt

Explanation:

the step-by-step solution is in the image

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One block rests upon a horizontal surface. A second identical block rests upon the first one. The coefficient of static friction
Sophie [7]

Answer:

F = 156.3 N

Explanation:

Let's start with the top block, apply Newton's second law

         F - fr = 0

         F = fr

         fr = 52.1 N

Now we can work  with the bottom block

In this case we have two friction forces, one between the two blocks and the other between the block and the surface. In the exercise, indicate that the two friction coefficients are equal

we apply Newton's second law

Y axis

        N - W₁ -W₂ = 0

        N = W₁ + W₂

as the two blocks are identical

        N = 2W

X axis

        F - fr₁ - fr₂ = 0

        F = fr₁ + fr₂

indicates that the lower block is moving below block 1, therefore the upper friction force is

          fr₁ = 52.1 N

          fr₁ = μ N

a

s the normal in the lower block of twice the friction force is

          fr₂ = μ 2N

          fr₂ = 2 μ N

          fr₂ = 2 fr₁

we substitute

          F = fr₁ + 2 fr₁

          F = 3 fr₁

          F = 3  52.1

          F = 156.3 N

7 0
3 years ago
Newton’s 3rd law of motion states that “every action has an equal and opposite reaction.” A golf ball was hit with a force of 20
DedPeter [7]

Answer:

<u>Example of Newton's III law</u>

  • In the, golf the ball was hit by a club with certain force. As the club hits the ball it's the action. When the ball flies away its the reaction.
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Help me please !!!!!
bezimeni [28]

Answer:

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hram777 [196]

Answer:

option A

Explanation:

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hope it helps !

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A target behavior is
crimeas [40]

Answer:

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