Question

If each acts ce (sum of the M D A der the which muscles are perpendicular to each other. If ma de of 1400 N, what is the estimated magnitude of the net force (sum ON B) 200N C) 2000N D) 700 N Assuming equal volume, the muscle with the larger cross sectional area will have a slower shortening velocity. Why? A) more streameres within each muscle fiber B) more muscle fibers in series C) more muscle fibers in parallel D) better alignment with tendons contraction 4 A muscle lengthens during a A) isokinetic B) isometric C) concentric D) eccentric 5. If a person is in the anatomical posture and rotating in the sagittal plane, their moment of inertia would be largest when the axis of rotation is located at the A) hips B) knees C) feet D) the moment of inertia is not dependent on the axis of rotation
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Answer 1

Solution 0 vector quantity are those quantity that have magnitude & direction as well, Eg Force, acceteration, weight, velocity efe are veeter. But mass it is not vecter because is an scalar have no direction. mass quantity (③ mass is CORRECT © Fe 1400 N perpendicular, F2 = 1400N The net fore it Fi & ke are = F = F2+ F2 F = |(1900)2 + (1900)? F = I x 1400 F = 1400 × 1.914 F = 1979.6N 2 F 2 2000 N ooooH IS CORRECT