A cylinder of mass M and raidus R moves with constant speed v through a...
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A cylinder of mass M and raidus R moves with constant speed v through a region of space that contains dust particles of mass m which is at rest There are n number of particles per unit volume The cylinder moves in a direction perpendicular to its axis Assume m M and assume the particles do not interact with each other All the collision takes place is perfectly elastic and the surface of the cylinder is smooth The drag force per unit length of the cylinder require to K maintain the speed v constant for the cylinder when it has entered in the region is nm Rv2 Find the value of K 3 R
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