6 of 11 E Review I Constants A 1.3 kg ball on the end of a lightweight rod is located at (z, y) = (3.0 m, 2.0 m), where the y-axis is vertical. The other end of the rod is attached to a pivot at (z, y) = (0 m, 3.0 m). Part A What is the torque about the pivot? Express your answer using unit vectors. Express your answer in terms of the unit vectors i, j, and k. Use the 'unit vector button to denote unit vectors in your answer.

A bicycle racer is going downhill at 13.5 m/s when, to his horror, one of his 2.17 kg wheels comes off when he is 52.0 m above the foot of the hill. We can model the wheel as a thin-walled cylinder 85.0 cm in diameter and neglect the small mass of the spokes. Part A How fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down? ΕΠΙ ΑΣΦ VAΣ+ ? V = 33 Submit Previous Answers Request Answer × Incorrect; Try Again Part B m/s How much total kinetic energy does the wheel have when it reaches the bottom of the hill? Kf = ΜΕ ΑΣΦ 2406 ? J

Part A A stone is suspended from the free end of a wire that is wrapped around the outer rim of a pulley, as shown in the figure (see the figure (Figure 1)). The pulley is a uniform disk with mass 11.6 kg and radius 48.0 cm and turns on frictionless bearings. You measure that the stone travels a distance 12.4 m during a time interval of 3.50 s starting from rest. Find the mass of the stone. Take the free fall acceleration to be 9.80 m/s. ΑΣφ kg Submit Request Answer • Part B Find the tension in the wire. Take the free fall acceleration to be 9.80 m/s². 圈] ? Submit Request Answer Provide Feedback Figure 1 of 1 MacBook Air

Parts D and E

Determine the net torque on the 3.5-m-long uniform beam shown in the figure

Previous Problem List A force F = 29 N i acts on an object at a point (xo, Yo) = (4.6 m, 4.7 m) as shown in the figure. y Next Yo F F X What is the magnitude of the torque generated by this force about the origin? What is the magnitude of the torque generated by this force about the point (x, y) = (2.1 m, 2.2 m)? Suppose the object is free to rotate about the z axis. If the object has a moment of inertia | = 33.0 kg*m² for rotation about the z axis, what is the magnitude of the angular acceleration of the object due to the application of the force F?

I need help with just part b