a) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 c m to the right of the wire and carries no pole b) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 c m to the right of the wire and the 14.0 k g pole he carries its com is 10 cm to the left of the wire

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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 10, Problem 75P

To determine

To Find:

a) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and carries no pole

b) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and the 14.0 kg pole he carries its com is 10 cm to the left of the wire

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Students have asked these similar questions

A high-wire walker always attempts to keep his center of mass over the wire (or rope). He normally carries a long, heavy pole to help: If he leans, say, to his right (his com moves to the right) and is in danger of rotating around the wire, he moves the pole to his left (its com moves to the left) to slow the rotation and allow himself time to adjust his balance. Assume that the walker has a mass of 70.0 kg and a rotational inertia of about the wire.What is the magnitude of his angular acceleration about the wire if his com is 5.0 cm to the right of the wire and (a) he carries no pole and (b) the 14.0 kg pole he carries has its com 10 cm to the left of the wire?

A tightrope walker is walking between two buildings holding a pole with length ?=14.5 m and mass ?p =19.5 kg. The daredevil grips the pole with each hand a distance ?=0.590 m from the center of the pole. A bird of mass ?b =565 g lands on the very end of the left‑hand side of the pole. Assuming the daredevil applies upward forces with the left and right hands in a direction perpendicular to the pole, what magnitude of force ?left and ?right must the left and right hand exert to counteract the torque of the bird?

A student stands on a platform that is free to rotate and holds two dumbbells, each at a distance of 65 cm from his central axis. Another student gives him a push and starts the system of student, dumbbells, and platform rotating at 0.50 rev/s. The student on the platform then pulls the dumbbells in close to his chest so that they are each 22 cm from his central axis. Each dumbbell has a mass of 1.00 kg and the rotational inertia of the student, platform, and dumbbells is initially 2.40 kg-m². Model each arm as a uniform rod of mass 3.00 kg with one end at the central axis; the length of the arm is initially 65 cm and then is reduced to 22 cm. What is his new rate of rotation? HH 65 cm 65 cm M 22 cm

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 10, Problem 75P

To determine

To Find:

a) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and carries no pole

b) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and the 14.0 kg pole he carries its com is 10 cm to the left of the wire

Expert Solution & Answer

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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 10, Problem 75P

To determine

To Find:

a) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and carries no pole

b) The magnitude of angular acceleration about the wire if the walker’s com is 5.0 cm to the right of the wire and the 14.0 kg pole he carries its com is 10 cm to the left of the wire

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

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 10, Problem 75P

To determine