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For the moment the mass has reached a height of b/2, determine the following as expressions of given and fundamental constant: i. the tangential

For the moment the mass has reached a height of b/2, determine the following as expressions of given and fundamental constant: i. the tangential acceleration of the mass, ii. the centripetal acceleration of the mass. iii. which one of your two above values represents the instantaneous rate at which the mass changes its direction?

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