Homework Answers
Here we use Newton's laws of motion and concept of circular motion,
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This concludes the answers. If there is any mistake,
let me know immediately and I will fix it....
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A mass m of 1kg is moving in a circle on a table while
attached to...
5-3) A small block (mass m) moves in a circle of radius r with tangential speed...
5-3) A small block (mass m) moves in a circle of radius r with tangential speed v. A string attached passes through to frictionless hole in the table at the center of the circle and is attached to a second mass M hanging below the table. Solve M for v in terms of the quantities given as well as any constants
5-3) A small block (mass m) moves in a circle of radius r with tangential speed v. A string...
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 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...
4. A ball of mass m is on a frictionless table. A string is attached to...
4. A ball of mass m is on a frictionless table. A string is attached to the ball goes through a hole as shown. A mass M is hung from the string. M If the ball is originally a distance l from the hole, what angular velocity must it be given to the mass m so that the mass M will remain at rest? If the mass M is pulled down so that the ball goes in a circle of...
PROBLEM III: (20pts) U m A point mass m is attached to a string, which passes...
PROBLEM III: (20pts) U m A point mass m is attached to a string, which passes through a hole in a table. Mass m,0.2 kg rotates in a circle of radius r-0.8 m with an angular velocity of 40 rad/s. a) What mass m must be attached to the end of the string the under the table to maintain this motion? b) Suppose that mass m is slowly increased by an amount that makes it descend a distance 0.1 m....
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 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 mass M attached to a string slides in a circle (x) on a frictionless...
A small mass M attached to a string slides in a circle (x) on a
frictionless horizontal table, with the force F
providing the necessary tension (see figure). The force is then
increased slowly and then maintained constant when M travels around
in circle (y). The radius of circle (x) is twice the radius of
circle (y).
Answer can be true,false,less than, greater than, equal to
(if you could leave an explanation that would be great!)
M's angular velocity at...
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...
5-3) A small block (mass m) moves in a circle of radius r with tangential speed v. A string attached passes through to frictionless hole in the table at the center of the circle and is attached to a second mass M hanging below the table. Solve M for v in terms of the quantities given as well as any constants
5-3) A small block (mass m) moves in a circle of radius r with tangential speed v. A string...
4. A ball of mass m is on a frictionless table. A string is attached to the ball goes through a hole as shown. A mass M is hung from the string. M If the ball is originally a distance l from the hole, what angular velocity must it be given to the mass m so that the mass M will remain at rest? If the mass M is pulled down so that the ball goes in a circle of...
PROBLEM III: (20pts) U m A point mass m is attached to a string, which passes through a hole in a table. Mass m,0.2 kg rotates in a circle of radius r-0.8 m with an angular velocity of 40 rad/s. a) What mass m must be attached to the end of the string the under the table to maintain this motion? b) Suppose that mass m is slowly increased by an amount that makes it descend a distance 0.1 m....
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
A small mass M attached to a string slides in a circle (x) on a
frictionless horizontal table, with the force F
providing the necessary tension (see figure). The force is then
increased slowly and then maintained constant when M travels around
in circle (y). The radius of circle (x) is twice the radius of
circle (y).
Answer can be true,false,less than, greater than, equal to
(if you could leave an explanation that would be great!)
M's angular velocity at...
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