Homework Answers
A uniform disk of radius 0.2 m and mass m = 16 kg is mounted on...
A uniform disk of radius 0.2 m and mass m = 16 kg is mounted on a nearly frictionless axle. A string is wrapped tightly around the disk and pulled with a constant force of F = 1 N. After a while the disk has reached an angular speed of ω0 = 2.3 rad/s. What is its angular speed 1.5 s later?
In the figure below, a wheel of radius 0.15 m is mounted on a frictionless horizontal...
In
the figure below, a wheel of radius 0.15 m is mounted on a
frictionless horizontal axle. A massless cord is wrapped around the
wheel and attached to a 2.0 kg box that slides on a frictionless
surface inclined at angle θ = 25° with the horizontal. The
box accelerates down the surface at 2.1 m/s2. What is
the rotational inertia of the wheel about the axle?
______ kg · m2
In the figure below, a wheel of radius 0.15...
Problem: A pulley, consists of a disk of radius R=0.2 m and mass M= 50 kg...
Problem: A pulley, consists of a disk of radius R=0.2 m and mass M= 50 kg is mounted on a nearly frictionless axle. A string is wrapped lightly around the pulley, and you pull on the string with a constant force, F = 100 N. If the pulley starts from rest, what is the angular speed at a time At = 1 s later? Assume that the string does not slip on the pulley. Note: Moment of inertia of a...
Your answer is partially correct. A wheel of radius 0.486 m is mounted on a frictionless...
Your answer is partially correct. A wheel of radius 0.486 m is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is 0.0240 kg-m. A massless cord wrapped around the wheel is attached to a 2.91 kg block that slides on a horizontal frictionless surface. If a horizontal force of magnitude - 3.52 N is applied to the block as shown in the figure, what is the angular acceleration of the wheel? Take the...
MR A pulley of mass 3M and radius R is mounted on ftictionless bearings and supported...
MR A pulley of mass 3M and radius R is mounted on ftictionless bearings and supported by a stand of mass 4M at rest on a table as shown to the right. The rotational inertia of this pulley about its axis is (3/2)MR2. Passing over the pulley is a massless cord supporting a block of mass M on the left and a block of mass 2M on the right. The cord does not slip on the pulley, so after the...
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius...
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from the spool with a constant acceleration of magnitude 2.82 m/s2. (a) How much work has been done on the spool when it reaches an angular speed of 7.45 rad/s? J (b) How long does it take the spool to reach...
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius...
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from the spool with a constant acceleration of magnitude 2.74 m/s2. (a) How much work has been done on the spool when it reaches an angular speed of 6.55 rad/s? _______J (b) How long does it take the spool to reach...
6. A disk with a mass M, a radius R, and a rotational inertia of I-...
6. A disk with a mass M, a radius R, and a rotational inertia of I- MR is attached to a horizontal spring which has a spring constant of as shown in the diagram. When the spring is stretched by a distance x and then released from rest, the disk rolls without slipping while the spring is attached to the frictionless axle within the center of the disk (a) Calculate the maximum translational velocity of the disk in terms of...
A wheel (radius = 0.30 m) is mounted on a frictionless, horizontal axis. A light cord...
A wheel (radius = 0.30 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around the wheel supports a 0.50-kg object. When released from rest the object falls with a downward acceleration of 5.0 m/sec. 111 TL LLLL 17. Find the tension on the cord. 18. Find the angular acceleration of the wheel. 19. Find the moment of inertia of the wheel. mg
A cord s wrapped around the rim of a solid uniform wheel 0.22 m in radius and of mass 8.60 kg
A cord s wrapped around the rim of a solid uniform wheel 0.22 m in radius and of mass 8.60 kg . A steady horizontal pull of 50.0 N to the right is exerted on the cord, pulling it off tangentially from the wheel. The wheel is mounted on frictionless bearings on a horizontal axle through its center. Part A Compute the angular acceleration of the wheelPart B Compute the angular acceleration of the part of the cord that has already been pulled...
In
the figure below, a wheel of radius 0.15 m is mounted on a
frictionless horizontal axle. A massless cord is wrapped around the
wheel and attached to a 2.0 kg box that slides on a frictionless
surface inclined at angle θ = 25° with the horizontal. The
box accelerates down the surface at 2.1 m/s2. What is
the rotational inertia of the wheel about the axle?
______ kg · m2
In the figure below, a wheel of radius 0.15...
Problem: A pulley, consists of a disk of radius R=0.2 m and mass M= 50 kg is mounted on a nearly frictionless axle. A string is wrapped lightly around the pulley, and you pull on the string with a constant force, F = 100 N. If the pulley starts from rest, what is the angular speed at a time At = 1 s later? Assume that the string does not slip on the pulley. Note: Moment of inertia of a...
Your answer is partially correct. A wheel of radius 0.486 m is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is 0.0240 kg-m. A massless cord wrapped around the wheel is attached to a 2.91 kg block that slides on a horizontal frictionless surface. If a horizontal force of magnitude - 3.52 N is applied to the block as shown in the figure, what is the angular acceleration of the wheel? Take the...
MR A pulley of mass 3M and radius R is mounted on ftictionless bearings and supported by a stand of mass 4M at rest on a table as shown to the right. The rotational inertia of this pulley about its axis is (3/2)MR2. Passing over the pulley is a massless cord supporting a block of mass M on the left and a block of mass 2M on the right. The cord does not slip on the pulley, so after the...
6. A disk with a mass M, a radius R, and a rotational inertia of I- MR is attached to a horizontal spring which has a spring constant of as shown in the diagram. When the spring is stretched by a distance x and then released from rest, the disk rolls without slipping while the spring is attached to the frictionless axle within the center of the disk (a) Calculate the maximum translational velocity of the disk in terms of...
A wheel (radius = 0.30 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around the wheel supports a 0.50-kg object. When released from rest the object falls with a downward acceleration of 5.0 m/sec. 111 TL LLLL 17. Find the tension on the cord. 18. Find the angular acceleration of the wheel. 19. Find the moment of inertia of the wheel. mg
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