N weight is suspended by two cords as shown above. What can you say about the te

Question

N weight is suspended by two cords as shown above. What can you say about the tension in the two cords?

kg woman stands on the very end of a uniform board, of length ?, which is supported one-quarter of the way from one end and is balanced ahown above. What is the mass of the board?

The tension in both cords is 5.0 N. The tension in cord B is greater than that in cord A. The tension in both cords is equal but not 5.0 N. The tension in cord A is greater than that in cord B. A 10.0-N weight is suspended by two cords as shown above. What can you say about the tension in the two cords? What can you say about the tension in the two cords?

Explanation / Answer

1. tension in A is greater. (4th option).

explanation : horizontal component of the two tensions is getting balanced (no other horizontal force).   Since A makes a larger angle with horizontal than B, it means it must have more magnitude, so as to have same horizontal component (Acos(a) = Bcos(b) => since a>b; thus cos(a)<cos(b) => A > B )

2. 60 kg (4th option)

let 1/4th of the board to the left, cancel out the 1/4th to the right

     now we have remaining to the left, 2/4th or half the board, mass = m/2 with center of mass of which is at L/2.

     and to the right, the woman with mass = 60 kg, center of mass at L/4

     balancing the moments

     m/2*L/2 = 60*L/4

     m = 60

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