40 kg A 500 mm B 800 mm Point 1 40 mm C 500 mm Point 2 Figure 3: Image of a barbell. 40 kg D A bodybuilder hold the barb

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40 Kg A 500 Mm B 800 Mm Point 1 40 Mm C 500 Mm Point 2 Figure 3 Image Of A Barbell 40 Kg D A Bodybuilder Hold The Barb 1 (59.6 KiB) Viewed 18 times

40 kg A 500 mm B 800 mm Point 1 40 mm C 500 mm Point 2 Figure 3: Image of a barbell. 40 kg D A bodybuilder hold the barbell at position B and C. Next, he/she lifted the barbell (Figure 1) to a level equal to his/her knee joint. This barbell has a circular cross section with a diameter of 40 mm. Assuming that both side A and B have equal weight of 40 kg, a) Calculate the stress at points 1 and 2. Calculate the stress at points 1 and 2, if the barbell has the outer diameter of 40 mm and inner diameter of 20 b) mm. Moment of inertia equation: 1 1₂ = ly = ar+ 4