Question

Problem 4. A pulley, solid ring shape, has a mass of 1.4 kg. A rope is wound on the pulley, and at the end has a 2.0 kg mass hanging. Determine the acceleration of the hanging mass, and the tension in the string.

Answer #1

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4. A pulley, solid ring shape, has a mass of 1.8 kg. A
rope is wound on the pulley, and at the end it has hanging a mass
of 3.6 kg. Determine the acceleration of the hanging mass, and the
tension in the string.

A string passing over a pulley has a 3.75-kg mass hanging from
one end and a 2.75-kg mass hanging from the other end. The pulley
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kg.
A) If the bearings of the pulley were frictionless, what would
be the acceleration of the two masses?
B) In fact, it is found that if the heavier mass is given a
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The diagram below shows an apparatus consisting of a massive
block, a pulley and a rope. One end of the rope is attached to the
block and the other is wound around the pulley. The pulley has a
mass of 12.0 kg and can be considered to be a solid disk of radius
33.0 cm . There is no friction in the bearings of the
pulley.(Figure 1).
The system is held at rest and then suddenly released at t=0.
After...

A 10 kg pulley with radius 1.0 m has an angular acceleration of
4.0 rad/s2 due to a wooden block hanging from a rope wound around
the pulley. What is the mass of the block (in kg)? Consider the
pulley to be a uniform disk.

A crate of mass m1 = 15.3 kg is pulled by a massless rope up a
36.9° ramp. The rope passes over an ideal pulley and is attached to
a hanging crate of mass m2 = 16.3 kg. The crates move 1.4 m,
starting from rest.
Find the work done by gravity on the sliding crate.
A crate of mass m1 = 12.4 kg is pulled by a massless rope up a
36.9° ramp. The rope passes over an ideal...

Problem 2. (based on Young & Freedman 9.47) A frictionless
pulley has the shape of a uniform solid disk of mass 2.50 kg and
radius .0200 m. A stone of unknown mass is attached to a very light
wire that is wrapped around the rim of the pulley. When the system
is released from rest, the stone accelerates downward at 5.9 m/s 2
(a) What is the angular acceleration of the pulley? Answer: 295
rad/s 2 (b) Find the torque...

A
1.53kg bucket hangs on a rope wrapped around a pulley of mass
7.07kg and radius 66cm. This pulley is frictionless in its axle,
and has the shape of a solid uniform disk.
A. Explain conceptually why the moment of inertia of
this pulley is less than the moment of inertia of a hoop around its
center with the same mass and circumference as the
pulley.
B. What is the angular acceleration of the
pulley?
C. What is the acceleration...

A frictionless pulley has the shape of a uniform solid cylinder
of mass 2.5 kg and radius 15 cm. A 2.1 kg stone is attached to a
very light wire that is wrapped around the rim of the pulley, and
the system is released from rest. When the stone has lost 3J of
gravitational potential energy, how much kinetic energy does the
pulley have?
The Answer is 1.1 J I just don't know how to reach this
answer.

The system shown in the figure below consists of a mass M =
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end of the string is attached to a hanging m = 2.4-kg block. The
pulley is a uniform disk of radius 8.0 cm and mass 0.60 kg.
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acceleration of M = 4.1 kg
acceleration of m...

A hanging weight, with a mass of m1 = 0.355
kg, is attached by a rope to a block with mass
m2 = 0.845 kg as shown in the figure below. The
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pulley can be modeled as a hollow cylinder with an inner radius of
R1 = 0.0200 m, and an outer radius of
R2 = 0.0300 m; the mass of the spokes is
negligible. As...

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