The correct way to find the center of mass of an irregularly shaped flat object from the following options: a. Find a point where you can put a fulcrum to balance it. b. Push the object in different directions and find the point of intersection of the lines of action of the forces that do not rotate the object. c. Separate the object into several regularly shaped objects whose center of masses you know, and use the mathematical definition of the center of mass to find it. d. All of the above. e. a and b only

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Answer 1

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Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

Chapter 8, Problem 2MCQ

To determine

The correct way to find the center of mass of an irregularly shaped flat object from the following options:

a. Find a point where you can put a fulcrum to balance it.

b. Push the object in different directions and find the point of intersection of the lines of action of the forces that do not rotate the object.

c. Separate the object into several regularly shaped objects whose center of masses you know, and use the mathematical definition of the center of mass to find it.

d. All of the above.

e. a and b only

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A block of mass m₁ = 1.85 kg and a block of mass m₂ is 0.360 for both blocks. = m M, R m2 Ꮎ 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having a mass of M = 10.0 kg. The fixed, wedge-shaped ramp makes an angle of 0 = 30.0° as shown in the figure. The coefficient of kinetic friction (a) Determine the acceleration of the two blocks. (Enter the magnitude of the acceleration.) x m/s² (b) Determine the tensions in the string on both sides of the pulley. left of the pulley × N right of the pulley X N Enter a number.

What is the error determined by the 2/3 rule?

Answer 2

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Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

Chapter 8, Problem 2MCQ

To determine

The correct way to find the center of mass of an irregularly shaped flat object from the following options:

a. Find a point where you can put a fulcrum to balance it.

b. Push the object in different directions and find the point of intersection of the lines of action of the forces that do not rotate the object.

c. Separate the object into several regularly shaped objects whose center of masses you know, and use the mathematical definition of the center of mass to find it.

d. All of the above.

e. a and b only

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Answer 3

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Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

Chapter 8, Problem 2MCQ

To determine

The correct way to find the center of mass of an irregularly shaped flat object from the following options:

a. Find a point where you can put a fulcrum to balance it.

b. Push the object in different directions and find the point of intersection of the lines of action of the forces that do not rotate the object.

c. Separate the object into several regularly shaped objects whose center of masses you know, and use the mathematical definition of the center of mass to find it.

d. All of the above.

e. a and b only

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

Chapter 8, Problem 2MCQ

To determine