The rectangular object in the figure below consists of four masses connected by light rods. What power must be applied to this object to accelerate it from rest to an angular speed of 3.38 rad/s in 7.6 s for the following cases.
(a) the object is rotated about the
x-axis
W
(b) the object is rotated about the
y-axis
W
(c) the object is rotated about the
z-axis (which is through the
origin and perpendicular to the page)
W
change the values
The initial angular speed ?i = 0
The final angular speed ?f = 2.63rad/s
the time interval ?t = 5.2s
The rectangular object in the figure below consists of four masses connected by light rods. What...
The rectangular object in the figure below consists of four
masses connected by light rods. What power must be applied to this
object to accelerate it from rest to an angular speed of 2.63 rad/s
in 5.2 s for the following cases. Give answer in 4 significant
figures
(a) the object is rotated about the x-axis ( )W
(b) the object is rotated about the y-axis ( )W
(c) the object is rotated about the z-axis (which is through the...
Rotational Kinetic Energy: The L-shaped object shown in the figure consists of three small masses connected by extremely light rods. Assume that the masses shown are accurate to three significant figures. How much work must be done to accelerate the object from rest to an angular speed of 3.25 rad/s (a) about the x-axis, (b) about the y- axis?
The L-shaped object in Figure 11-27 consists of three
massesconnected by light rods.
Figure 11-27
(a) What torque must be applied to this object to
giveit an angular acceleration of 1.21rad/s2 if it is
rotated about the x axis?
N·m
(b) What torque must be applied to this object to give it anangular
acceleration of 1.21rad/s2 if it is rotated about the
y axis?
N·m
(c) What torque must be applied to this object to give it anangular
acceleration of...
Three masses are connected by rigid massless rods, as shown. The 200-g mass (B) is located at the origin (0, 0). (a) Find the x- and y-coordinates of the center of mass. (b) Find the moment of inertia of this system of three connected masses when rotated about the r-axis that passes through mass B? (c) If this system is rotated about the r-axis, from rest to an angular speed of 6 rad/s in time t = 3 s, what...
011. Four particles with masses 4 kg, 6 kg, 4 kg, and 6 kg are connected by rigid rods of negligible mass as shown. The origin is centered on the mass in the lower left corner. The rectangle is 6 m wide and 5 m long. If the system rotates in the xy plane about the z axis (origin, O) with an angular speed of 5 rad/s, calculate the moment of inertia of the system about the z axis. 012. Find the...
Four masses are arranged as shown. They are connected by rigid, massless rods of lengths 0.840 m and 0.500 m. What torque must be applied to cause an angular acceleration of 0.750 rad/s about the axis shown? B A T Lm A 4.00 kg B 3.00 kg Axis C5.00 kg D 2.00 kg 0.500 m- where L 0.840 | N-m
The L-shaped object(Figure 1) can be rotated in one of the
following three ways: case A, about the x axis; case B,
about the y axis; and case C, about the z axis
(which passes through the origin perpendicular to the plane of the
figure).
If the same torque ? is applied in each of these cases,
rank them in decreasing order of the resulting angular
acceleration.
The L-shaped object(Figure 1) can be rotated in one of the following three...
The four particles shown below are connected by rigid rods of negligible mass where y1 = 6.60 m. The origin is at the center of the rectangle. The system rotates in the xy plane about the z axis with an angular speed of 6.40 rad/s. (a) Calculate the moment of inertia of the system about the z axis.(b) Calculate the rotational kinetic energy of the system.
The three masses shown in (Figure 1) are connected by massless, rigid rods. Part A Find the coordinates of the center of gravity. Part B Find the moment of inertia about an axis that passes through mass A and is perpendicular to the page. Part C Find the moment of inertia about an axis that passes through masses B and C.
Moment of inertia for point masses Three point masses are connected by massless rods. Determine the moment of inertia about an axis perpendicular to the page and that passes through a) the 150g mass, b) the 100 g mass, and c) the 200 g mass.