Question

<HW #07 : Chapter 5 Pushing a Lawnmower 5 of 5 COs8-usin Consider a lawnmower mass m which can slide Previous Answers across a horizontal surface with a coefficient of friction . this problem the lawnmower is pushed using a massless handle, which makes an angle with the force exerted by the Correct handle, is parallel to the handle. the right and the Use g for the magnitude Take the positive x direction to be Part B of the acceleration due to cravity . For any angle > critlcal, the expression The solution for Fh has a singularity (that becomes infinitely large) at a certain angle Berit fact, the increased normal force at these large angles makes the force of friction too large to move is not a physically acceptable solution. Figure 1 of 1 the lawnmower all expression for tan(ritical). Find View Available Hint(s) να ΑΣφ tan(critieal) ubmit Return to Assignment Provide Feedback

Answer 1

Paat The Answe moay not be obvious , but ail the que stons fi that te sa ing the toree aplied ore frichon epal in x- diretion. And rction comes Sine the Cocficient ot ictron () multhiplied by Potction toe y-dnedtro) fepved foe (Xdvedion) - FHsin (etc) coS cos (eyiftal) Hsin (ential SinOtu) cos (e ctial) tan (ocit Han (Rtical or) Prom Pat A Answer Oritia ccouvej when denomi natuy when cas(0) = lsın (Oc14) -Han (ectli) H