Physcis spring mass model question Which of the following initial conditions cou

Question

Physcis spring mass model question

Which of the following initial conditions could produce motion that is not confined to a single vertical plane? (Remember that the spring is suspended from a location on the +y axis, above the origin.) Check all that apply. Ball initially on -x axis; Initial velocity in -z direction Ball initially on +z axis; Ball Initial velocity in +x direction Ball initially on +x axis; Initial velocity in +y direction Ball initially on +x axis; Initial velocity zero Ball initially on +z axis; Initial velocity zero Ball initially on -z axis; Initial velocity in -z direction

Explanation / Answer

(1) Ball initially on -x-axis and initially velocity in - z direction .

Explanation : The spring is hanging on y axis and ball is on -x axis whereas inital velocity is in -z direction . A plane consists of two any two axis but here we have three axis in the action , Hence motion is not confined to a single plane.

(2) Ball initially on +z-axis and initially velocity in +x direction .

Explanation : The spring is hanging on y axis and ball is on +z axis whereas inital velocity is in +x direction . A plane consists of two any two axis but here we have three axis in the action , Hence motion is not confined to a single plane

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