An air puck of mass m, = 0.31 kg is tied to a string and allowed to revolve in a circle of radius R = 0.9 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 m., = 0.9 kg is tied to it (see the figure below). The suspended mass remains in equilibrium while the puck on the tabletop revolves. тy т2 (a) What is the tension in the string (in N)? (b) What is the horizontal force acting on the puck (in N)? (c) What is the speed of the puck (in m/s)? m/s

A block of mass m1 = 1.55 kg and a block of mass m, = 6.25 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. The fixed, wedge-shaped ramp makes an angle of 0 = 30.0° as shown in the figure. The coefficient of kinetic friction is 0.360 for both blocks. М, R m1 (a) Draw force diagrams of both blocks and of the pulley. Choose FileNo file chosen This answer has not been graded yet. (b) Determine. the acceleration of the two blocks. (Enter the magnitude of the acceleration.) Enter a number. uation describing the angular acceleration of the pulley and the acceleration of the blocks? m/s2 (c) Determine the tensions in the string on both sides of the pulley. left of the pulley N right of the pulley N

A hoop of mass 3.00 kg and radius 1.00 m is moving at 3π rad/s across a horizontal surface. The coefficient of friction between the hoop and the surface is 0.65. Calculate how far the hoop will travel before it comes to rest.

The uniform disk of mass m is rotating with an angular velocity of v0 when it is placed on the floor. Determine the initial angular acceleration of the disk and the acceleration of its mass center. The coefficient of kinetic friction between the disk and the floor is μk.

An object is held and spun in gravity-free space, with mass m at the end of a spring of constant k and length lo . Ss it spins, the spring extends dependent on angular velocity ω, and when ω is constnat, the total length of the spring is lo + x. What is x in terms of the other variables:

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An air puck of mass m, = 0.33 kg is tied to a string and allowed to revolve in a circle of radius R = 0.9 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 m, = 1.0 kg is tied to it (see the figure below). The suspended mass remains in equilibrium while the puck on the tabletop revolves. (a) What is the tension in the string (in N)? N (b) What is the horizontal force acting on the puck (in N)? N (c) What is the speed of the puck (in m/s)? m/s Need Help? Read It