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View History Bookmarks People Window Help ps lledugen.wileyplus.com/edugen/student/mainfr.uni ment Question 4 Your answer is partially correct. Try again. A particle moves horizontally in uniform circular motion, over a horizontal xy plane. At one instant, it moves through the point at coordinates (4.10 m, m) with a velocity of -7.20 i m/s and an acceleration of 4.40 +13.7 j m/s2. What are the (a) x and (b) y coordinates of the center of the circular path? (a) Number 10 uniti m unit (b) Number 38.9 SHow HINT LINK TO SAMPLE PROBLEM LINK TO TEXT LINK TO SAMPLE PROBLE LINK TO SAMPLE PROBLE VIDEO MINI-LECTURE MATH HELP MATH HELP MATH HELP l erivac Policy l 2000-2017 xhn wiley s sons, Inc. All Rights Reserved A Division of John Wiley & Sons, unc,

Explanation / Answer

in uniform circular motion, acceleration is directed radially inward.

so here the point connecting (4.1,4.4) and the center is parallel to y axis

so its x coordinate=4.1 m

its y coordinate will be 4.4 + radius of the circle

as we know,acceleration=speed^2/radius

==>radius=speed^2/acceleration=7.2^2/13.7=3.784 m

then y coordinate of the center=4.4+3.784=8.184 m

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