# Question need answers fir these [4] 12. Find the magnitude of the torque vector, measured in Newton-meters, produced by a cyclist exerting a force of = [70,25, 140]N on the shaft-petal F = [12, 16,70cm long. Recall; i =iXF Force vector F- (70,25,40) Shaft petal= r = (12 16,70) j K 16 k(12x25 - 70x16) + To 25 40 = &1890+44203-820k = 1,232, loot 13. Calculate the area of the parallelogram whose adjacent sides are d = [5.1.-2) and 5 = (3,3,-1] [4) Page 12 of 13

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Transcribed Image Text: [4] 12. Find the magnitude of the torque vector, measured in Newton-meters, produced by a cyclist exerting a force of = [70,25, 140]N on the shaft-petal F = [12, 16,70cm long. Recall; i =iXF Force vector F- (70,25,40) Shaft petal= r = (12 16,70) j K 16 k(12x25 - 70x16) + To 25 40 = &1890+44203-820k = 1,232, loot 13. Calculate the area of the parallelogram whose adjacent sides are d = [5.1.-2) and 5 = (3,3,-1] [4) Page 12 of 13
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Transcribed Image Text: [4] 12. Find the magnitude of the torque vector, measured in Newton-meters, produced by a cyclist exerting a force of = [70,25, 140]N on the shaft-petal F = [12, 16,70cm long. Recall; i =iXF Force vector F- (70,25,40) Shaft petal= r = (12 16,70) j K 16 k(12x25 - 70x16) + To 25 40 = &1890+44203-820k = 1,232, loot 13. Calculate the area of the parallelogram whose adjacent sides are d = [5.1.-2) and 5 = (3,3,-1] [4) Page 12 of 13