A dirty teddy bear is thrown into a top-loading washing machine.The cylinder in

Question

A dirty teddy bear is thrown into a top-loading washing machine.The cylinder in the machine rotates about a vertical axis. At whatminimum speed does the wall of the cylinder have to move to stickthe teddy to it so that he doesn't slide down? At this point, thefrictional force acting upwards on the bear will balance his weight(this is the spin cycle, so the water has been drained and there isno buoyant force). The coefficient of static friction between a wetteddy bear and a washing machine wall is 0.500 and the washingmachine cylinder has a radius of 0.360 meters.
(0/2 submissions used)m/s (0/2 submissions used)m/s

Explanation / Answer

the centrifugal force acting on the teddy whilerotating in the cylinder            CF = mv^2 / r    m = mass of the teddy    v = tangential velocity of the cylinder r = radisu of the cylinder           the normal force of the teddy on the cylinder                   N = CF for the teddy to stuck to the rotaing cyliner thefrictional force must suppot the weight of the teddy                    F = N = mg                       (mv^2 /r ) = mg                  = frictional coefficient                 r = raidus of cylinder                 v = tangential velocity                g = accleration due to gravity from the above relation using the given values we cansolve for ' v '              

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