Question

P1300 35° Length 797 d1 pivot d2 Length Art of rotation Axs of row Arir of 30 50 115 pivote 156 Length Length L lal (f) (e) The purpose of this problem is for you to practice: (1) the steps making drawings of lever arm, (ii) applying the proper trignometrical functions to calculate the lever arm. For each figure, do the above mentioned practice. a) In Figure (a) the distance from the pivot to the right end d2 = 1.00 m. What is the lever arm for force F2? Enter a number m Incorrect (0.0%) Submit (2 attempts remaining) In Figure (a) the distance from the pivot to the left end d1 = 1.00 m. What is the lever arm (in meters) for force F1? Enter a number m
please answer all parts to each question

Answer 1

a)

r₂ = lever arm length for F₂ = d₂ Sin90 = 1 Sin90 = 1 m

r₁ = lever arm length for F₁ = d₁ Sin35 = 1 Sin35 = 0.57 m

b)

r = lever arm length for force F = L Sin50 = 1.60 Sin50 = 1.23 m

c)

r = lever arm length for force F = L Sin50 = 1.60 Sin50 = 1.23 m

d)

r = lever arm length for force F = L Sin(180 - 130) = 1.60 Sin50 = 1.23 m

e)

r = lever arm length for force F = L Sin(50) = 1.60 Sin50 = 1.23 m

f)

r = lever arm length for force F = L Sin(50) = 1.60 Sin50 = 1.23 m

g)

r₁ = lever arm length for F₁ = d₁ Sin90 = 0.50 Sin90 = 0.50 m