ew History Bookmarks People Window Help The Expert TA Study Guided sel heexpertt

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ew History Bookmarks People Window Help The Expert TA Study Guided sel heexpertta.com/Common/TakeTutorialAssignment aspx HW03 Begin Date: 1/10 016 12:00:00 AM Due Date: 2/5/2016 (8%) Problem 9: A ball with mass m m 14 g at the end of massless is swaying in a circle of radius R LA2 m with a strand and angular velocity eo a 3 rads. 00 PM End Date: 5102016 5:00 PM 25% Part (a) write an expression for the velocity vof the ball. A 25% Part calculate the velocity of the ball, vin m/s. in direction towards In to the path constantly be changing (curving s constant change the center of the circle is a center pointing acceleration called Write an expression for the centripetal acceleration de of the ball, in terms of the linear velocity 25% Part (d) Calculate the centripetal acceleration of the ball, a in m/s2. Grade Summary Potential cotano asino acoso atan0 Lacotan0 sinh()

Explanation / Answer

a)
v=R*w

b)
v = R*w
= 1.42*3
= 4.26 m/s

c)
ac = v^2/R

d)
ac = v^2/R
= (4.26)^2/1.42
= 12.8 m/s^2

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