WBBB●WarmsBW trunk000ᎾThe figure depicts a person doing a deadlift. All moment arm lengths are relativeto the L5 vertebra. The L5 vertebra is angled at 12 deg (angle ) as indicated.Fmuscle is aligned with the long axis of the vertebra.Fmuscle=• The barbell weight is WBB = 874 N. It has a moment arm of 0.37 m.• The arm weight Warms = 55 N. It has a moment arm of 0.34 m.• The trunk weight Wttrunk344 N. It has a moment arm of 0.15 m.Fmuscle has a moment arm of 0.05 m.Calculate the compressive bone-on-bone force (N). Report positive values to thenearest Newton (e.g. 111 N). You are allowed a 10% margin of error for rounding.

Barbell weight: WBB=874 N Corresponding moment arm: Lb=0.37 m Arm weight: Warm=55 N Corresponding…

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