A uniform rod is hinged to a wall and held at a 30 angle by a ...

[cookcarl]

A uniform rod is hinged to a wall and held at a 30 angle by a thin string that is attached to the ceiling and makes a 90 angle to rod. Which statement(s) must be true? (At least one of them is true and at least one is false.)
 
  1.The hinge force is purely vertical.
  2.The hinge force is purely horizontal.
  3.The string tension is equal to the hinge force.
  4.The string tension is smaller than the rod's weight.
  5.1 and 3 are true.
  6.2 and 3 are true.
  7.1 and 4 are true.
  8.2 and 4 are true.
  9.3 and 4 are true.
  10.Three of the statements are true.

Question 2

A uniform rod of length L, mass M, is suspended by two thin strings. Which of the following statements is true regarding the tensions in the strings?
 
  1.T2 = T1
  2.T2 = 2.5 T1
  3.T2 = 0.6 T1
  4.T2 = 0.8 T1
  5.None of the above
  6.Not enough information to determine

[chreslie]

Answer to Question 1

4

Answer to Question 2

3

[cookcarl]

Excellent

[nguyenhoanhat]

TYSM