NOTE: Please show all your work and/or reasoning to obtain full credit for the p

Question

NOTE: Please show all your work and/or reasoning to obtain full credit for the problems 2 points each 1. A foroe F in the negative x direction is applied to a particle in the plane. The arrow that best represents the torque produced by on the particle with respect to the origin is B. 2 D. 4 2. The vector Coould represent, A. D. E. None of these is possible. 3. A wheel is set spinning and is then hung by a rope placed at one end of the axie. If the wheel is spinning as shown, the angular momentum of the wheel could be represented by vector A, 1

Explanation / Answer

1) The position vector from origin to the particle and acting force are in x-y plane with the right hand thumb rule we get the direction of torque as in positive z direction ( torque = r x F)

Answer A 1

2) from fig we have A = i hat

                        B= -k hat

                       C = -j hat

therefore C=BxA

Answer D

3) the angular momentum direction is given by the relation r x v

therefore we the direction is along 5

Answer E

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