Kinetic Energy of a wheel with spokes

AI Thread Summary
To find the kinetic energy of a wheel with a 3kg rim and four 1.2kg spokes rolling at 6 m/s, the total mass of the wheel is calculated as 3kg + (4 x 1.2kg) = 7.8kg. The kinetic energy (KE) can be determined using the formula KE = 0.5 * m * v^2, where m is the total mass and v is the velocity. Substituting the values, KE = 0.5 * 7.8kg * (6 m/s)^2 results in a kinetic energy of 139.2 Joules. The discussion emphasizes the importance of showing work and relevant equations when seeking help with physics problems. Understanding the components of the wheel's mass is crucial for accurate calculations.
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Homework Statement


A wheel has a thin 3kg rim and four spokes each of mass 1.2kg.


Homework Equations


Find the kinetic energy of the wheel when it rolls at 6 m/s on a horizontal surface.


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