A body of mass m and radius R rolling horizontally without slipping at a speed v climbs aramp to a height⡱ぉㄘ⡲〴 . The rolling body can be
Question
A body of mass m and radius R rolling horizontally without slipping at a speed v climbs aramp to a height⡱ぉㄘ⡲〴 . The rolling body can be
Solution
It seems like your question got cut off. However, I can start explaining the concept of a body of mass m and radius R rolling horizontally without slipping at a speed v.
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First, we need to understand the concept of rolling without slipping. This means that the point of the body in contact with the surface is momentarily at rest. This is a condition for pure rolling motion.
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The kinetic energy of a rolling body is the sum of the translational kinetic energy and the rotational kinetic energy. The translational kinetic energy can be given by (1/2)mv^2 and the rotational kinetic energy by (1/2)Iω^2, where I is the moment of inertia and ω is the angular velocity.
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For a body rolling without slipping, v = Rω. Therefore, the total kinetic energy can be written as (1/2)mR^2ω^2 + (1/2)Iω^2.
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If the body climbs a ramp to a height h, it will lose kinetic energy and gain potential energy. The potential energy gained is mgh.
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By conservation of energy, the initial kinetic energy of the body should be equal to the final potential energy. Therefore, (1/2)mR^2ω^2 + (1/2)Iω^2 = mgh.
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