Question

ŽŶƐŝĚĞƌĞƋƵĞƵŵĞŝǆŽŐŝƌĂĐŽŵǀĞůŽĐŝĚĂĚĞĂŶŐƵůĂƌ ω ĐŽŶƐƚĂŶƚĞ͕ŵĂƐĂƉƌĞƐĞŶƚĂǀŝďƌĂĕĆŽĞǆĐĞƐƐŝǀĂƉŽƌĐĂƵƐĂ ĚŽĚĞƐďĂůĂŶĐĞĂŵĞŶƚŽĚĂƐƋƵĂƚƌŽŵĂƐƐĂƐĐŽŶĐĞŶƚƌĂĚĂƐ͕ĚŝƐƉŽƐƚĂƐĞ ŵƚŽƌŶŽĞĂŽůŽŶŐŽĚŽĞŝǆŽ͘ƐƐƵŵĂƋƵĞ͕ ƉŽƌĂůŐƵŵŵŽƟǀŽ͕ĂƐŵĂƐƐĂƐŶĆŽƉŽĚĞŵƐĞƌŝŶĚŝǀŝĚƵĂůĞĞƐƚĂƟĐĂŵĞ ŶƚĞďĂůĂŶĐĞĂĚĂƐĚĞŶƚƌŽĚŽƐƐĞƵƐƉƌſƉƌŝŽƐ ƉůĂŶŽƐ͕ƐĞŶĚŽŶĞĐĞƐƐĄƌŝŽĐƌŝĂƌĚŽŝƐƉůĂŶŽƐĚĞĐŽƌƌĞĕĆŽ A e BƐŵĂƐƐĂƐĚĞƐďĂůĂŶĐĞĂĚĂƐĂƉƌĞƐĞŶƚĂŵǀĂůŽƌĞƐ͘ ĚĞm =m =m =m сϭŬŐ͕ƌĂŝŽƐ Z =Z =Z =Z сϭĐŵĞƉŽƐŝĕƁĞƐĂŶŐƵůĂƌĞƐθ1, θ2, θ3, θ4 ŝŶĚŝĐĂĚĂƐŶĂĮŐƵƌĂ͘ 1 2 ϯ 4 1 2 ϯ 4 Y 3 1 R 3 Ϊ 3 R 1 Ȧ Ϊ 1 45° 45° 45° 45° X Ϊ 2 R R 4 2 Ϊ4 2 4 3 1 m m 3 1 10 cm 20 cm 20 cm 20 cm 10 cm A m m B 4 2 4 2 EĞƐƐĂƐŝƚƵĂĕĆŽ͕ŽƐƉƌŽĚƵƚŽƐ ŵZĞŽƉŽƐŝĐŝŽŶĂŵĞŶƚŽĂŶŐƵůĂƌƉĂƌĂďĂůĂŶĐĞĂŵĞŶƚŽĚŝŶąŵŝĐŽŶŽƐƉůĂŶŽƐĚĞ ĐŽƌƌĞĕĆŽA e BƐĂƟƐĨĂǌĞŵăƐƐĞŐƵŝŶƚĞƐĐŽŶĚŝĕƁĞƐ͘

Accepted Answer

A) m R = m R = 0,5 sen 45o [kg · cm], θ = 90◦, θ = 270◦.

Answer

B) o ◦ θ = 225◦ m R = m R = 1,0 sen 45 [kg · cm], θA = 45 , B .

Answer

C) m R = m R = 2,0 sen 45o [kg · cm], θ = 90◦, θ = 270◦.

Answer

D) o ◦ θ = 225◦ m R = m R = 4,0 sen 45 [kg · cm], θA = 45 , B

Answer

E) o θ = 135◦ ◦
m R = m R = 1,0 sen 45 [kg · cm], A , θB = 315
.
.

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