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R
axis
A disk of mass m and radius R, which is wound with a rope hanging from the ceiling,
starts to roll down. The linear velocity of the ball when it has rolled 5 m down can be
expressed as v = - (square root of a/b) where a and b are the smallest possible
integers. Find the value of a+b.
O Cannot calculate without
values of m and R
O 201
200
O 203

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