Refer to the figure on the right for the next four questions. The figure shows a

Question

Refer to the figure on the right for the next four questions. The figure shows a pendulum. A mass attached to a string is released from rest at position P. The mass swings down and then reaches its maximum height at point R before turning around and heading back to the left. The eight numbered arrows labeled dl through d8 refer to directions indicated. When the mass reaches point Q, in which direction is its velocity? d1 d2 d3 d4 None of the arrows: the velocity is zero. When the mass reaches point Q. in which direction is its acceleration? d2 d3 d5 d7 None of the arrows; the acceleration is zero. When the mass reaches point R, in which direction is its velocity? d2 d3 d6 d7 None of the arrows: the velocity is zero. When the mass reaches point R, in which direction is its acceptation d2 d5 d6 d8 None of the arrows: the acceleration is zero.

Explanation / Answer

33) Option (c)-d3 - velocity is perpendicular to redius.

34) Option (a)-d1 only radial acceleration is present at Q.

35) Option (e) velocity is zero at R

36) Option (c) perpendicular to radius in backward direction.

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