A mass of 5kg starts from rest and pulls down vertically on a string wound around...
A mass of 5kg starts from rest and pulls down vertically on a string wound around a disk-shaped, massive pulley. The mass of the disk is 5kg and its radius is 2 m. What is the linear speed, in m/s, after the mass drops by 0.3 m?
What's the concept here? Kinetic Energy of Rotation or are we supposed to use Torque?
If someone can help me with the concept and give me steps on how to solve this, it would be very helpful.
Thank You!
Homework Answers
Add Answer to:
A mass of 5kg starts from rest and pulls down vertically on a
string wound around...
A yo-yo: A simple model of the yo-yo toy is below. A string is wound around...
A yo-yo: A simple model of the yo-yo toy is below. A string is wound around a uniform disk of radius R=0.3 m and mass M=2kg. The disk is released from rest when the string is vertical and its top end is tied to a fixed bar as in the figure below. Find the torque of the disk around THE CONTACT POINT. Find the speed of the yo-yo center of mass once it went down 2 meters.
A string is wound around a disk of mass M = 215 kg and a radius...
A string is wound around a disk of mass M = 215 kg and a radius of R = 0.310 m. The disk is free to rotate about its center by a frictionless pin. The other end of the string is attached to a mass m = 87.0 kg. The mass is released from rest and travels downward causing the cylinder to rotate. How many revolutions did the disk make 6 seconds after the release of mass m from rest?
a person pulls a toboggan of mass M=5kg from rest for a distance of 35.0 m...
a person pulls a toboggan of mass M=5kg from rest for a distance of 35.0 m along the snow with a rope directed 25 degrees above the snow. the tension in the rope is 30N. (a) if the coefficient of kinetic friction between the toboggan and the snow if uk= 0.5, what is the work done by the friction? (what is the final speed of the toboggan?
A string is wound around a uniform disk of radius R and mass M. The disk is released from rest with the string vertical and its top end tied to a fixed bar. See the figure below.
A string is wound around a uniform disk of radius R and mass M. The disk is released from rest with the string vertical and its top end tied to a fixed bar. See the figure below. (Submit a file with a maximum size of 1 MB.) (a) Show that the tension in the string is one third of the weight of the disk. (b) Show that the magnitude of the acceleration of the center of mass is 2g/3. (c) Show that the...
A mass m hangs from a string. The string is attached to a frictionless pulley of...
A mass m hangs from a string. The string is attached to a frictionless pulley of mass M and is wrapped around it many times around it. The hanging mass is released from rest from a height h above the floor. The pulley is a uniform disk. use the rotational and linear second laws to find the acceleration of the mass as it falls. I got a = 2mg/(2m+M). Is this correct? If, so please explain
A counterweight of mass m-3.60 kg is attached to a light cord that is wound around...
A counterweight of mass m-3.60 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R-9.00 cm and mass M-2.70 kg. The spokes have negligible mass. (a) What is the net torque on the system about the axle of the pulley? magnitude 3.17 direction ! to the right along the axis of rotation f he system about b) when the counterweight has a...
A counterweight of mass m-4.50 kg is attached to a light cord that is wound around...
A counterweight of mass m-4.50 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radlus R 7.00 cm and mass M 1.80 kg. The spokes have negliglble mass (a) What Iis the net torque on the system about the axle of the pulley? magnitude 3.087 direction to the right along the axis of rotation (b) when the counterweight has a speed v, the...
A mass m hangs from string wrapped around a pulley of radius R. The pulley has...
A mass m hangs from string wrapped around a pulley of radius R. The pulley has a moment of inertia I and its pivot is frictionless. Because of gravity, the mass falls and the pulley rotates. The magnitude of the torque on the pulley is.. equal to mgR Not enough information greater than mgR less than mgR
Question 7(a). A string is wound around a uniform disc of mass M and radius R....
Question 7(a). A string is wound around a uniform disc of mass M and radius R. The dise is released from rest with the string vertical and its top end tied to a fixed bar (Fig.4). Find 6 the tension in the string. (ii) the magnitude of acceleration of the centre of mass. (ii) the speed of the centre of mass of the disc after it has descended through the distance h. 2 121 121 Figure 4 Question 7(b). A...
A cylinder of radius 0.40 m and a mass of 12 kg has a string wound around it. The string is pulled off perpendicular to the radius, so that it doesn't slip while spooling off the cylinder, ma...
A cylinder of radius 0.40 m and a mass of 12 kg has a string wound around it. The string is pulled off perpendicular to the radius, so that it doesn't slip while spooling off the cylinder, making the cylinder rotate around an axis through its center with a rotational acceleration of 0.60 rad/s. (The formula for the moment of rotational inertia for the cylinder in this situation is I-% mr, where "m" is the mass and "t" is the...
A counterweight of mass m-3.60 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R-9.00 cm and mass M-2.70 kg. The spokes have negligible mass. (a) What is the net torque on the system about the axle of the pulley? magnitude 3.17 direction ! to the right along the axis of rotation f he system about b) when the counterweight has a...
A counterweight of mass m-4.50 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radlus R 7.00 cm and mass M 1.80 kg. The spokes have negliglble mass (a) What Iis the net torque on the system about the axle of the pulley? magnitude 3.087 direction to the right along the axis of rotation (b) when the counterweight has a speed v, the...
Question 7(a). A string is wound around a uniform disc of mass M and radius R. The dise is released from rest with the string vertical and its top end tied to a fixed bar (Fig.4). Find 6 the tension in the string. (ii) the magnitude of acceleration of the centre of mass. (ii) the speed of the centre of mass of the disc after it has descended through the distance h. 2 121 121 Figure 4 Question 7(b). A...
A cylinder of radius 0.40 m and a mass of 12 kg has a string wound around it. The string is pulled off perpendicular to the radius, so that it doesn't slip while spooling off the cylinder, making the cylinder rotate around an axis through its center with a rotational acceleration of 0.60 rad/s. (The formula for the moment of rotational inertia for the cylinder in this situation is I-% mr, where "m" is the mass and "t" is the...
Most questions answered within 3 hours.
-
A chemist had a bottle of HCl (aq) of unknown concentration. She
performed a titration experiment...
asked 22 seconds ago -
According to the network system security, please explain:
1- What is canary and how it does...
asked 1 hour ago -
Study the provided BagInterface and the methods implemented in
the ResizableArrayBag
For the following methods that...
asked 1 hour ago -
Enter your answer in the provided box. To what fraction of its
original volume, Vfinal/Vinitial, must...
asked 1 hour ago -
Can you figure out if any R functions used to subset a time
series 1 or...
asked 2 hours ago -
Which of the following is correct?
A. APC + MPS = 1
B. APS + MPS...
asked 2 hours ago -
Given a regression sum of squares equal to 2373.59 and a total
sum of squares equal...
asked 4 hours ago -
Compare and contrast the linear motion and angular motion
equations F ma and . That is,...
asked 3 hours ago -
Now that this course has taken you on a journey of introduction
to the world of...
asked 3 hours ago -
The sandwich maker of the EE-Cole-Eye Sandwich Truck was just
fired (for a reason described below)...
asked 6 hours ago -
Name the following coordination compounds using systematic
nomenclature.
1. [Co(H2O)6]Cl2:
2. [Cr(NH3)6](NO3)3:
3. K4[Fe(CN)6]:
4. Na[Au(CN)4]:...
asked 5 hours ago -
Propose an efficient synthesis of 2-Bromo-5-nitrotoluene from
benzene. Hint: 3 steps. Consider directing effects of substituents....
asked 7 hours ago