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Prathamesh Tamhane Grade: 11
        

A 4m rod AB slides down the plane with vA = 4 m/s to the left and aA = 5 m/s2 to the right. Angle θ at this moment is 30o. Determine the angular velocity and angular acceleration at this instant of time.

7 years ago

Answers : (1)

ashish kumar
17 Points
										


Angular velocity of AB =( VA-VB)/LAB


                                      = (4 cos60 - 0)/4


                                     = 2/4


                                    = 0.5


Insatantaneous centre of rotation is point B since it has zero velocity.


Let the angular acceleration be


Therefore   aA = (AB)


                 = 5 cos60/4


 


                    = 5/8


7 years ago
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