Acceleration of the bob at the fifth moment What is the acceleration\'s directio

Question

Acceleration of the bob at the fifth moment What is the acceleration's direction at moment 5? Reference the compass rose and enter the letter that identifies the direction of Deltav, the velocity change. Enter Z if the acceleration vector has zero length. Direction of the bob's acceleration at the zeroth and tenth moments What are the directions of the bob's accelerations at moments 0 and 10? Reference the compass rose and enter the letters that identify the directions of the accelerations at moments 0 and 10 separated by a comma. Enter Z if an acceleration vector has zero length.

Explanation / Answer

(A) At moment 5= A

(B) At moment 0 = D

     At moment 10= F

Reasons are as follow:

At 5 Forces acting are tension and gravity whose resultant will be along the radial direction only ,which will provide the centripetal acc in radial direction . At 0 and 10 since velocity is zero there would be no centripetal acc and tension and gravity act in such a way that resultant force will be along tangential direction.

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