A 6 kg disk with a hole in its center has a c value about its center of 0.57 has an outer radius of 3.5 meters. A force of 9 Newtons is applied in the -x direction at the edge of the disk directly to the right of its center. Another force of 34 Newtons is applied directly above the center in the -x direction halfway between the center and edge of the disk. Lastly, a force of 15 Newtons is applied on the edge of the disk directly to the left of its center in the +y direction at a distance of 1/4's of the radius of the disk from the center. What is the angular acceleration about the center of the disk in rad/s2? If clockwise, include a negative sign.
Homework Answers
A 10 kg disk with a hole in its center has a c value about its...
A 10 kg disk with a hole in its center has a c value about its center of 0.56 has an outer radius of 3.6 meters. A force of 5 Newtons is applied in the -x direction at the edge of the disk directly to the right of its center. Another force of 28 Newtons is applied directly above the center in the -x direction halfway between the center and edge of the disk. Lastly, a force of 15 Newtons...
A 8 kg disk with a radius of 1 meters has several forces applied to it...
A 8 kg disk with a radius of 1 meters has several forces applied
to it as shown in the sketch. F1 is 41 N and is applied at the edge
of the disk, F2 is 7 N is applied at 1/4 the radius from the center
of the disk, F3 is 5 N is applied at 3/4 the radius from the
center, F4is 29 N is applied at the edge of the disk, and, lastly,
F5 is 16 N...
A solid disk with a c value of 1/2, mass of 3 kg, and radius of...
A solid disk with a c value of 1/2, mass of 3 kg, and radius of 1.5 meters lies on a horizontally (so the normal force and weight can be ignored). A force of 9 Newtons is applied 0.22 meters directly to the right of the center in the +x direction, a force of 24 Newtons is applied at 0.81 meters directly below of the center in the +x direction and a force of 8 Newtons is applied at the...
A solid disk with a c of 1/2, mass of 3 kg, and radius of 1.5...
A solid disk with a c of 1/2, mass of 3 kg, and radius of 1.5 meters lies on a horizontally (so the normal force and weight can be ignored). A force of 7 Newtons is applied 0.34 meters directly to the right of center in the +x direction, a force of 23 Newtons is applied 0.77 meters directly below of center in the +x direction, and a force of 7 Newtons is applied at the edge of the disk...
(a) What is the magnitude of the torque on the disk (about the z axis)...
(a) What is the magnitude of the torque on the disk (about the z
axis) due to F1? (1pt)
(b) What is the magnitude of the torque on the disk due to F2?
(1pt)
(c) What is the magnitude of the torque on the disk due to F3?
(1pt)
(d) What is the magnitude and direction (clockwise or
counterclockwise) of the angular ac- celeration about the z-axis of
the disk? (2pt)
(e) If the disk starts from rest, what...
A uniform disk with mass m = 8.55 kg and radius R = 1.35 m lies...
A uniform disk with mass m = 8.55 kg and radius R = 1.35 m lies in the xy plane and centered at the origin. Three forces act on the disk in the +y-direction (see figure below): (1) a force F1 = 335 N at the edge of the disk on the +x-axis, (2) a force F2 = 335 N at the edge of the disk on the ?y-axis, and (3) a force F3 = 335 N at the edge...
Question 7 8 pts A disk is rotating at 21 rad/s counter-clockwise about its center and...
Question 7 8 pts A disk is rotating at 21 rad/s counter-clockwise about its center and a constant angular acceleration of 4 rad/s? is applied to it clockwise. After 0.69 seconds, what is its rotational kinetic energy about its center if c 1/2, the mass of the disk is 4 kg, and its radius is 0.74 meters? Answer in Joules.
A disk with radius 0.6 meters and mass 31 kg is spinning about its own center with an angular velocity of 88ed A solid sphere (/ mR2) with a radius of 0.18 meters which is spinning with an angula...
A disk with radius 0.6 meters and mass 31 kg is spinning about its own center with an angular velocity of 88ed A solid sphere (/ mR2) with a radius of 0.18 meters which is spinning with an angular velocity of -18 ed (the negative sign indicates the opposite 6. rad sec direction), is gently lowered onto the disk a sticks to the disk. The two rotate together (about their mutual center of mass) at an angular velocity of 33...
A disk with a mass of 15 kg is spinning about its center with a constant...
A disk with a mass of 15 kg is spinning about its center with a constant angular acceleration applied to it. Its c value is 1/2 about its center and it is initally spinning at 5 rad/s clockwise. If the disk stops spinning in a time of 1.5 s, how many revolutions does the disk make until it stops? 1.79 rev. 3.75 rev. 11.25 rex 0.60 rev. MacBook Pro $ % 5 & 7 8 E R T Y F...
1) What is the magnitude of the torque on the disk about the z axis due...
1)
What is the magnitude of the torque on the disk about the z axis
due to F1?
N-m
2)
What is the magnitude of the torque on the disk about the z axis
due to F2?
N-m
3)
What is the magnitude of the torque on the disk about the z axis
due to F3?
N-m
4)
What is the x-component of the net torque about the z axis on
the disk?
N-m
5)
What is the y-component of...
A 8 kg disk with a radius of 1 meters has several forces applied
to it as shown in the sketch. F1 is 41 N and is applied at the edge
of the disk, F2 is 7 N is applied at 1/4 the radius from the center
of the disk, F3 is 5 N is applied at 3/4 the radius from the
center, F4is 29 N is applied at the edge of the disk, and, lastly,
F5 is 16 N...
(a) What is the magnitude of the torque on the disk (about the z
axis) due to F1? (1pt)
(b) What is the magnitude of the torque on the disk due to F2?
(1pt)
(c) What is the magnitude of the torque on the disk due to F3?
(1pt)
(d) What is the magnitude and direction (clockwise or
counterclockwise) of the angular ac- celeration about the z-axis of
the disk? (2pt)
(e) If the disk starts from rest, what...
Question 7 8 pts A disk is rotating at 21 rad/s counter-clockwise about its center and a constant angular acceleration of 4 rad/s? is applied to it clockwise. After 0.69 seconds, what is its rotational kinetic energy about its center if c 1/2, the mass of the disk is 4 kg, and its radius is 0.74 meters? Answer in Joules.
A disk with radius 0.6 meters and mass 31 kg is spinning about its own center with an angular velocity of 88ed A solid sphere (/ mR2) with a radius of 0.18 meters which is spinning with an angular velocity of -18 ed (the negative sign indicates the opposite 6. rad sec direction), is gently lowered onto the disk a sticks to the disk. The two rotate together (about their mutual center of mass) at an angular velocity of 33...
A disk with a mass of 15 kg is spinning about its center with a constant angular acceleration applied to it. Its c value is 1/2 about its center and it is initally spinning at 5 rad/s clockwise. If the disk stops spinning in a time of 1.5 s, how many revolutions does the disk make until it stops? 1.79 rev. 3.75 rev. 11.25 rex 0.60 rev. MacBook Pro $ % 5 & 7 8 E R T Y F...
1)
What is the magnitude of the torque on the disk about the z axis
due to F1?
N-m
2)
What is the magnitude of the torque on the disk about the z axis
due to F2?
N-m
3)
What is the magnitude of the torque on the disk about the z axis
due to F3?
N-m
4)
What is the x-component of the net torque about the z axis on
the disk?
N-m
5)
What is the y-component of...
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