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sindhuja P Grade: 11
        

A particle of mass 2Kg revovles in a circular path on X-Y plane with a constant speed of 5 m/s along the path x2+y2-25=0.The force(in N) acting on the particle at the position (-3m,4m) will be_______________________

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear sindhuja


 


6386-1362_7662_untitled1.JPG


 


radius of the circle is =5


since it  is moving with constant speed so there is no tangential acceleration


only centripetal acceleraton will act towards the center of circle .


centripetal force =mv2/r


                       =2*25/5 =10 N


tan θ =|4/-3|


        =4/3


so force =10(cosθ i -sinθj)


            =6i-8j





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Badiuddin

7 years ago
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