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5-3) A small block (mass m) moves in a circle of radius r with tangential speed...
A small 0.270-kg object moves on a frictionless horizontal table in a circular path of radius...
A small 0.270-kg object moves on a frictionless horizontal table in a circular path of radius 1.70 m. The angular speed is 9.60 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. Someone under the table begins to pull the string downward to make the circle smaller. If the string will tolerate a tension of no more than 102 N, what is the...
A small 0.501-kg object moves on a frictionless horizontal table in a circular path of radius...
A small 0.501-kg object moves on a frictionless horizontal table in a circular path of radius 1.16 m. The angular speed is 5.51 rad/s. The object is attached to a string of negligible mass that passes through a small hole in the table at the center of the circle. Someone under the table begins to pull the string downward to make the circle smaller. If the string will tolerate a tension of no more than 112 N, what is the...
A small object of mass m1 moves in a circular path
A small object of mass m1 moves in a circular path of radius r on a frictionless horizontal tabletop. It is attached to a string that passes through a frictionless hole in the center of the table. A second object with a mass of m2 is attached to the other end of the string. Derive an expression for r in terms of m1, m2, and the time T for one revolution. (Use any variable or symbol stated above along with the...
A small mass m attached to the end of a string revolves in a circle on...
A small mass m attached to the end of a string revolves in a circle on a frictionless tabletop. The other end of the string passes through a hole in the table (Fig. 8-62). Initially, the mass revolves with a speed vi = 2.4 m/s in a circle of radius ri =0.80 m. The string is then pulled slowly through the hole so that the radius is reduced to r2 0.48 m. What is the speed, 2, of the m...
A mass of 0.875 kg, on a frictionless table, is attached to a string which passes...
A mass of 0.875 kg, on a frictionless table, is attached to a string which passes through a hole in the table. The hole is at the center of a horizontal circle in which the mass moves with constant speed. The radius of the circle is 0.520 m and the speed of the mass is 17.0 m/s. It is found that drawing the string down through the hole and reducing the radius of the circle to 0.370 m has the...
A puck of mass m = 1.20 kg slides in a circle of radius r =...
A puck of mass m = 1.20 kg slides in a circle of radius r = 24.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 2.30 kg by a cord through a hole in the table. What speed keeps the cylinder at rest? Number Units
A small object of mass m moves in a horizontal circle of radius r on a...
A small object of mass m moves in a horizontal circle of radius r on a rough table. It is attached to a horizontal string fixed at the center of the circle. The speed of the object is initially v0. After completing one full trip around the circle, the speed of the object is 0.5v0. (a) Find the energy dissipated by friction during that one revolution in terms of m, v0, and r. (Use any variable or symbol stated above...
A mass of .775kg, on a frictionless table, is attached to a strong which passes though...
A mass of .775kg, on a frictionless table, is attached to a strong which passes though a hole in the table. The hole is at the center of a horizontal circle in which the mass moves with constant speed. The radius of the circle is .57 m and the speed of the mass is 15 m/s. It is found that drawing the string down through the hole and reducing the radius of the circle to .33m has the effect of...
An air puck of mass 0.23 kg is tied to a string and allowed to revolve in a circle of radius 1.2 m on a frictionl...
An air puck of mass 0.23 kg is tied to a string and allowed to revolve in a circle of radius 1.2 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 0.9 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? (b) What is the force...
An object of mass m is on a frictionless table rotating with a given tangential speed...
An object of mass m is on a frictionless table rotating with a given tangential speed vo with a radius of string ri. The string goes down through a hole (no friction) in the table where a given applied force, FA pulls down on the string a given distance d. Then, the object still keeps rotating but in a smaller and smaller circle. Find the final speed of the object after the rope was pulled down the distance d.
A small mass m attached to the end of a string revolves in a circle on a frictionless tabletop. The other end of the string passes through a hole in the table (Fig. 8-62). Initially, the mass revolves with a speed vi = 2.4 m/s in a circle of radius ri =0.80 m. The string is then pulled slowly through the hole so that the radius is reduced to r2 0.48 m. What is the speed, 2, of the m...
A puck of mass m = 1.20 kg slides in a circle of radius r = 24.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 2.30 kg by a cord through a hole in the table. What speed keeps the cylinder at rest? Number Units
An air puck of mass 0.23 kg is tied to a string and allowed to revolve in a circle of radius 1.2 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 0.9 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? (b) What is the force...
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