12. Rotational Kinematics
Converting Between Linear & Rotational
2:50 minutes
Problem 10.52c
Textbook Question
Textbook Question(III) A hammer thrower accelerates the hammer of mass 7.30 kg (Fig. 10–64) from rest within four full turns (revolutions) and releases it at a speed of 26.5 m/s. Assuming a uniform rate of increase in angular velocity and a horizontal circular path of radius 1.20 m, calculate
(c) the centripetal acceleration just before release, (Ignore gravity)
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