Speed of 30 kg block before it hits the ground.

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Answer 1

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 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

(b)

To determine

To Find: Angular speed of the pulley.

(c)

To determine

To Find: Tensions in the strings.

(d)

To determine

To Find: Time of descent.

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Answer 2

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 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

(b)

To determine

To Find: Angular speed of the pulley.

(c)

To determine

To Find: Tensions in the strings.

(d)

To determine

To Find: Time of descent.

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Check out a sample textbook solution

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Answer 3

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 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

(b)

To determine

To Find: Angular speed of the pulley.

(c)

To determine

To Find: Tensions in the strings.

(d)

To determine

To Find: Time of descent.

Expert Solution & Answer

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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 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

(b)

To determine

To Find: Angular speed of the pulley.

(c)

To determine

To Find: Tensions in the strings.

(d)

To determine

To Find: Time of descent.

Expert Solution & Answer

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Answer 5

Chapter 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

(b)

To determine

To Find: Angular speed of the pulley.

(c)

To determine

To Find: Tensions in the strings.

(d)

To determine

To Find: Time of descent.

Answer 6

Chapter 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

Answer 7

Chapter 9, Problem 76P

(a)

To determine

To Find: Speed of 30 kg block before it hits the ground.

Answer 8

(b)

To determine

To Find: Angular speed of the pulley.

Answer 9

(b)

To determine

To Find: Angular speed of the pulley.

Answer 10

(c)

To determine

To Find: Tensions in the strings.

Answer 11

(c)

To determine

To Find: Tensions in the strings.

Answer 12

(d)

To determine

To Find: Time of descent.

Answer 13

(d)

To determine

To Find: Time of descent.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 9 - Prob. 1P Ch. 9 - Prob. 2P Ch. 9 - Prob. 3P Ch. 9 - Prob. 4P Ch. 9 - Prob. 5P Ch. 9 - Prob. 6P Ch. 9 - Prob. 7P Ch. 9 - Prob. 8P Ch. 9 - Prob. 9P Ch. 9 - Prob. 10P

Speed of 30 kg block before it hits the ground.

Solution Summary: The author explains how the torque acting on the disk (pulley) is given by tau =Ialpha.

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To Find: Speed of 30 kg block before it hits the ground.

To Find: Angular speed of the pulley.

To Find: Tensions in the strings.

To Find: Time of descent.

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