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Consider a bicycle wheel that initially is not rotating. A block of mass m is attached to the wheel via a string and is allowed to fall a distance h. Assume that the wheel has a moment of inertia I about its rotation axis Now consider the case that the string tied to the block is wrapped around a smaller inside axle of the wheel of radius rB as shown in (Figure 2) . Find ωB, the angular speed of...
PROBLEM 15.18 The sprocket wheel and chain shown are initially at rest. If the wheel has a uniform angular acceleration of 90 rad's counterclockwise, determine (a) the acceleration of point A of the chain, (b) the magnitude of the acceleration of point B of the wheel after 3 s.
Example 7.2 A Rotating Wheel Goal Apply the rotational kinematic equations. Problem A wheel rotates with a constant angular acceleration of 3.45 rad/s. Assume the angular speed of the wheel is 2.15 rad/s at t; = 0. (a) Through what angle does the wheel rotate between t = 0 and t = 2.00 s? Give your answer in radians and revolutions. (b) What is the angular speed of the wheel at t = 2.00 s? Strategy The angular acceleration is...
Example 7.2 A Rotating Wheel Goal Apply the rotational kinematic equations. Problem A wheel rotates with a constant angular acceleration of 3.45 rad/s. Assume the angular speed of the wheel is 2.15 rad/s at t; = 0. (a) Through what angle does the wheel rotate between t = 0 and t = 2.00 s? Give your answer in radians and revolutions. (b) What is the angular speed of the wheel at t = 2.00 s? Strategy The angular acceleration is...
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Example 7.2 A Rotating Wheel Goal Apply the rotational kinematic equations. Problem A wheel rotates with a constant angular acceleration of 3.20 rad/s2. Assume the angular speed of the wheel is 1.75 rad/s at t = 0. (a) Through what angle does the wheel rotate between t = 0 and t = 2.00 s? Give your answer in radians and revolutions. (b) What is the angular speed of the wheel at t = 2.00 s? Strategy The angular acceleration is...