Reading Question 17.13 Part A The slender rod is pinned to a small massless roll

Question

Reading Question 17.13

Part A

The slender rod is pinned to a small massless roller A that slides freely along the slot. The rod is released from rest at ° = 0 and swings downward. Which of the following is the correct statement regarding the motion of the rod during the process? The slender rod is pinned to a small massless roller A that slides freely along the slot. The rod is released from rest at ° = 0 and swings downward. Which of the following is the correct statement regarding the motion of the rod during the process?

a) The center of mass of the rod has a circular path b) The maximum angular acceleration of the rod occurs when ° = 90° c) The rotational equation of motion of the rod can be set up as MA=IA d) The motion of the rod is rotation about a fixed axis e) The center of mass of the rod moves along a straight line

Explanation / Answer

oprion (e) is correct.

tge center of mass of the rod moves along a straight line because net force on the rod in x direction is zero. Hence the center of mass will have velocity and acceleration in vertical direction only.

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