An object with a mass of m=5.10 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.250 m and mass M= 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center. The suspended object is released frp, rest 6.00 m above the floor. Determine a. the tension in the string b. the acceleration of the object, and (c) b ising the isolated sustem (energy) model.

The 10-kg uniform horizontal rod is seen from the side. What is the gravitational torque about the point shown? Use g = 10 m/s2.       -50 N·m     -75 N·m     25 N·m     -100 N·m     -25 N·m     0     50 N·m     100 N·m     75 N·m

The Atwood machine consists of two masses hanging from the ends of a rope that passes over a pulley. The pulley can be approximated by a uniform disk with mass m, = 6.13 kg and 17.9 kg radius r, = 0.150 m. The hanging masses are m and mg = 12.9 kg. Calculate the magnitude of the masses' acceleration a and the tension in the left and right ends of the rope, Ti and TR, respectively. m/s? a = N Ti = m. MR TR

3. A bead is free to slide along a frictionless hoop of radius r. The plane of the hoop is horizontal, and the center of the hoop travels in a horizontal circle of radius R, with constant angular speed w, about a given point. Find the equation of motion for the position of the bead. Also, find the force of constraint. @of R ---- m 10.

Two masses are connected by an ideal rope over a pulley. The rope has no mass or stretch. The pulley is frictionless but has mass Mp and radius R. M, is on an approximately frictionless slope with angle 0 =19°. %3D The masses are all equal, M1 = M2 Mp. %3D The pulley can be approximated by a hoop with I = Mp R2 %3D If the masses are released from rest (not moving), what is their speed after M2 has fallen a distance h = 2.4 m?

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A pulley is bolted to a wall as shown. The pulley is a flat disk of mass mp, radius R and moment of inertia I = mpR². A mass MH hangs from it by a rope that is wound about the pulley and does not slip. a. Give an appropriate force diagram for each of the two masses. b. Write ALL equations necessary to solve for the linear acceleration of MH. B мн

An air puck of mass 0.30 kg is tied to a string and allowed to revolve in a circle of radius 1.3 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of 1.5 kg is tied to it. The suspended mass remains in equilibrium while the puck on the tabletop revolves. (a) What is the tension in the string? N (b) What is the force causing the centripetal acceleration on the puck? (c) What is the speed of the puck? m/s Need Help? Read It

Number 4 needs answered

A uniform disk with mass m = 8.75 kg and radius R = 1.41 m lies in the x-y plane and centered at the origin. Three forces act in the +y- direction on the disk: 1) a force 315 N at the edge of the disk on the +x-axis, 2) a force 315 N at the edge of the disk on the -y-axis, and 3) a force 315 N acts at the edge of the disk at an angle 0 = 38° above the -x-axis. +y +x F3 IF, F2