Rotational motion and angular × Rotational Motion And Angulex ← c 을secure https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=17118419#017 17. 1/3 points Previous Answers SerPSET9 12.P.021 My Notes Ask Your John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of θ = 20.00 with the ground. Due to the weight of Rachel and the wheelbarrow, a downward force of 425 N is exerted at the center of the wheel, which has a radius of 17.5 cm. Assume the brick remains fixed and does not slide along the ground. Also assume the force applied by John is directed exactly toward the center of the wheel. (Choose the positive x-axis to be pointing to the right.) (a) What force must John apply along the handles to just start the wheel over the brick? 1601.41 N (b) What is the force (magnitude and direction) that the brick exerts on the whee just as the wheel begins to lift over the brick? magnitude direction kN clockwise from the -x-axis Need Help? Lead.」 Your work in question(s) 30 will also be submitted or saved Submit Assignment Save Assignment Progress Prctice Another Version Practice Another Version 18. -13 points SerPSET9 12.P025. My Notes Ask Your Teacher A uniform plank of length 2.00 m and mass 28.0 kg is supported by three ropes as indicated by the blue vectors in the figure below. Find the tension in each rope when a 690 N person is d 0.275 m from the left end