1. [0/1 Points] DETAILS PREVIOUS ANSWERS HRW9 5.P.006. MY NOTES ASK YOUR TEACHER In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the overhead view of the figure. The tire remains stationary in spite of the three pulls. Alex pulls. with. force of magnitude 208 N, and Charles pulls with force of magnitude 171 N. Note that the direction of Charles' force is not given. What is the magnitude of Betty's force? . . . ..... X N Enter a number. Alex Charles W 137 Betty Math Help Algebra-Common Denominator, Algebra-Distribute Common Cross, Algebra-Quadratic Equation, Algebra-Squareroots & Squares11. [0/3 Points] PREVIOUS ANSWERS HRW9 6.P.O16. ASK YOUR TEACHER A loaded penguin sled weighing 70 N rests on a plane inclined at 20 to the horizontal. Between the sled and the plane the coefficient of static friction is 0.22, and the coefficient of kinetic friction is 0.19. F ..(a)..what,is.the minimum magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane? x N ' Enteranumber. (b) What is the minimum magnitude Fthat will start the sled moving up the plane? :N (c) What value of Fis required to move the block up the plane at constant velocity? :l N What component of the gravitational force is downhill? What component is perpendicular to the hill? What is the normal force on the car? (a) What is the direction of the frictional force to oppose the pending motion? If the sled is on the verge of sliding, then the frictional force is at its maximum possible value. (b) The direction of the pending motion is now different. (c) Did you set up Newton's second law for motion along the plane? What is the acceleration along the plane? Submit