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O DA H))) 98% Tue Jun 14 7 50 58 PM Q E Chrome File Edit View History Bookmarks People Window Help Josh Torque www.webassign.net /web/Student/Assignment-Responses/last?dep 1390736 Apple YouTube home Watch L Sports E O tech EN9 faculty pnc.edu/pt Bookmarks Destiny LFG Net I OTR DestinyTracker De Eii App C. Henry Edwards, Question 2 Total -1 -1 -12 -4 (0.0%) Points Assignment submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your last submission is used for your score 1. -1 points CJ10 P.002. My Notes Ask Your Teacher The steering wheel of a car has a radius of 0.18 m, and the steering wheel of a truck has a radius of 0.29 m. The same force is applied in the same direction to each steering wheel. What is the ratio of the torque produced by this force in the truck to the torque produced in the car? truck Additional Materials Section 9 2. C+0 -1 points CJ10 9. P.004. My Notes Ask Your Teacher Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 27.5 above the horizontal. One child, with a mass of 41.2 kg, is hanging 1.31 m along the branch from the tree trunk. The other child, with a mass of 36.3 kg, is hanging 2.07 m from the tree trunk. What is the magnitude of the net torque exerted on the branch by the children? Assume that the axis is located where the branch joins the tree trunk and is perpendicular to the plane formed by the branch and the trunk.Explanation / Answer
1)
T_truck/T_car = F*r_truck/(F*r_car)
= 0.29/0.18
= 1.61
2) net torque produced by the two childern, Tnet = m1*g*d1*sin(90-27.5) + m2*g*d2*sin(90-27.5)
= 41.2*9.8*1.31*sin(72.5) + 36.3*9.8*2.07*sin(72.5)
= 1207 N.m
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