x y 6 Chapter 6 Forces Again x M C Physics question I Chegg x www.webassign.net/

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x y 6 Chapter 6 Forces Again x M C Physics question I Chegg x www.webassign.net/web/Student/Assignme Response /submit? pos dep 5647802 Extension Requests Print Assignment Question 1 2 3 4 5 6 7 8 9 10 11 12 Total 11 2/2 0/1 212 11 1/2 2/2 44 1/2 44 113 3/3 22/27 (81.5% Points Assignment Submission Desc For this assignment, you submit answers by question parts. The number Adding circular motion and friction 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. 6. /2 points I Previous Answers SerPSE9 6.P014.MI.FB My Notes Ask Your Teacher A 41. 0-k child swings in a swing supported by two chains, each 2.98 m long. The tension in each chain at the lowest point is 352 N. g (a) Find the child's speed at the lowest point. Can you find the net force on the child at the lowest point of the swing? Do you expect this to be zero if the child is moving in a circle? m/s (b) Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.) N (upward) Need Help? Read It ul Master It Submit Answer Save Progress Practice Another Version View Previous Question Question 6 of 12 View Next Question Ask me anything

Explanation / Answer

Net force acting on the system is Fnet = N-W =m*a

N-W = m*a

N is the normal force of the seat on the child which is equal to 2T,T be the tension in the string

N = 2T = 2*352 = 704 N

W is the weight of the child = m*g = 41*9.8 = 401.8 N

m*a = 704-401.8

41*a = 704-401.8

accelaration is a = 7.37 m/s^2

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