Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping. (c) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque. ☑ A A B C D (d) For which ONE OR MORE options is the gravitational torque positive, indicating rotation about the pivot point in the counterclockwise direction? ✓ A U 、 ☐ ☐ U Think of the triangles below as wooden blocks. The center of mass (also the center of gravity) for each triangle is marked as a black dot. In each case, one corner of the triangular block is in contact with a flat surface. There is friction between the block and the surface so that the point of contact does not slip. The different options A-D show "snapshots" of the block, which may or may not be tipping. Pbl A B C D (a) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque. A B ☑ ☐ ☑ ☐ D (b) For which ONE OR MORE options is the gravitational torque negative, indicating rotation about the pivot point in the clockwise direction? A ☑ 、 U U D Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping.
Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping. (c) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque. ☑ A A B C D (d) For which ONE OR MORE options is the gravitational torque positive, indicating rotation about the pivot point in the counterclockwise direction? ✓ A U 、 ☐ ☐ U Think of the triangles below as wooden blocks. The center of mass (also the center of gravity) for each triangle is marked as a black dot. In each case, one corner of the triangular block is in contact with a flat surface. There is friction between the block and the surface so that the point of contact does not slip. The different options A-D show "snapshots" of the block, which may or may not be tipping. Pbl A B C D (a) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque. A B ☑ ☐ ☑ ☐ D (b) For which ONE OR MORE options is the gravitational torque negative, indicating rotation about the pivot point in the clockwise direction? A ☑ 、 U U D Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping.
Principles Of Radiographic Imaging: An Art And A Science
6th Edition
ISBN:9781337711067
Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Publisher:Richard R. Carlton, Arlene M. Adler, Vesna Balac
Chapter1: Basic Mathematics
Section: Chapter Questions
Problem 9RQ
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Answer these please
Transcribed Image Text:Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping.
(c) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque.
☑
A
A B
C
D
(d) For which ONE OR MORE options is the gravitational torque positive, indicating rotation about the pivot point in the counterclockwise direction?
✓ A
U
、
☐ ☐
U
Transcribed Image Text:Think of the triangles below as wooden blocks. The center of mass (also the center of gravity) for each triangle is marked as a black dot. In each case, one corner of the triangular block is in contact with a flat surface. There is friction between the block
and the surface so that the point of contact does not slip.
The different options A-D show "snapshots" of the block, which may or may not be tipping.
Pbl
A
B C
D
(a) For which ONE OR MORE options is the gravitational torque (due to the the force of gravity acting at the center of mass of the object) zero? Use the contact point as the pivot point for determining the torque.
A
B
☑ ☐ ☑
☐
D
(b) For which ONE OR MORE options is the gravitational torque negative, indicating rotation about the pivot point in the clockwise direction?
A
☑
、
U
U
D
Consider a different set of shapes, as shown below. The center of mass for each shape is again marked as a black dot. The different options A-D show "snapshots" of the block, which may or may not be tipping.
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