Professor Brown holds on to the end of the Second hand of a clock atop city hall. If the second hand is 5.5m long, what is the professor’s centripetal acceleration? Remember that time = 60 seconds, radius = 5.5 m  Solve for velocity first, then use that to calculate acceleration.  A. 2.4 m/s2 B. 1.3 m/s2 C. .06 m/s

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Professor Brown holds on to the end of the Second hand of a clock atop city hall. If the second hand is 5.5m long, what is the professor’s centripetal acceleration?

Remember that time = 60 seconds, radius = 5.5 m 

Solve for velocity first, then use that to calculate acceleration. 

A. 2.4 m/s2
B. 1.3 m/s2
C. .06 m/s2
Expert Solution
Step 1

centripetal acceleration is always perpendicular to velocity .

centripetal acceleration always point towards the center of curve 

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