How to calculate rotational velocity
[DOC File]Rotational Mechanics
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What is the angular (rotational) velocity of the second hand of a clock in radians per second? Rotational Inertia is the resistance that an object has to changes in its rotation, and is based upon the distribution of mass about an axis of rotation. The further away mass is from an axis of rotation, the _____ the rotational inertia.
[DOC File]Lab #8: The Kinematics & Dynamics of Circular & Rotational ...
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The purpose of Activity 1 is to compare the graphs of rotational motion for an object, the turntable, which starts from rest and rotates with constant angular acceleration. Add to the Angular Velocity and Angular Acceleration to the Angular Position ( ) vs. Time graphing window. You should now have all three graphs in …
[DOC File]Rotational Dynamics
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Calculate the kinetic energy of the ball. 2. How high up a ramp can the 7kg ball above roll to? 3. A tangential force of 360 N acts for a time of 5.0 seconds at the edge of a potter’s wheel with radius 50cm and mass 45kg. What is the change in its rotational velocity? 4. An Atwood’s machine has m1 = 1kg, m2 = 2kg, hung from a 5cm radius ...
[DOC File]Physics - Rotational Motion and Astrophysics: Numerical ...
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Calculate the angular velocity of the propeller. Each propeller blade has a length of 0.35 m. Calculate the linear speed of the tip of a propeller. A CD of diameter 120 mm rotates inside a CD player. The linear speed of point A on the circumference of the CD is 1.4 m s–1. Calculate the angular velocity of the CD: (a) in rad s–1 (b) in rpm.
[DOC File]Determining Port Velocity
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Volume = Velocity (21,190 fpm) x Area (2.1 sqin x 1 sqft/144 sqin - converts sqin to sqft) = 309 cfm @ 28” Since we use feet per second in the flow measurement of …
[DOC File]Rotational Motion
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Rotational Motion. Mechanics is the study of motion. All motion in the Universe can be classified into three basic types: translation, rotation, and oscillation. So far, you have studied translational motion – the motion of a particle that moves along a straight or curved path. In rotational motion, a system of particles turns about an axis.
[DOC File]Chapter 7 Gravitation
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Instantaneous angular velocity is equal to the slope of a graph of angular position versus time. Angular Velocity of earth is . ωE = Δθ / Δt. ωE = 2Π rad / [(24 h)(3600s/h)] = 7.27 * 10-5 rad/s. If an object’s angular velocity is . ω, then the linear velocity of a point a distance, “r” from the axis of rotation is . …
[DOC File]Rotation of rigid bodies - schoolphysics
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Calculate the rotational kinetic energy of both if they are rotated at 10 rev s-1. 2. A uniform disc of mass 150 g has a diameter of 10 cm. Calculate the total energy of the disc when rolling along a horizontal table with a velocity of 20 cms-1. 3.
[DOC File]Rotational Kinematics
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Calculate the angular speed, frequency and linear speed of the second hand of a clock of needle length 0.02 m. An old phonograph record revolves at 45 rev/minute. What is the angular velocity in rad/sec? 0nce the motor is turned off, it takes 0.75 sec to come to a stop. What is its average angular acceleration?
[DOC File]SPIRIT 2 - University of Nebraska–Lincoln
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v = rώ where r is the radius and ώ is the rotational velocity. Rotational and tangential velocities are often confused. Notice a key difference is that tangential velocity increases as the radius increases, but the rotational velocity will be the same no matter the radius change.
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