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Phy 201
Your 'cq_1_26.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A simple pendulum has length 2 meters. It is pulled back 10 cm from its equilibrium position and released. The tension in the string is 5 Newtons.
• Sketch the system with the pendulum mass at the origin and the x axis horizontal.
answer/question/discussion: ->->->->->->->->->->->-> :
I’m not sure how I’m supposed to sketch this on a word document.
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• Sketch a vector representing the direction of the pendulum string at this instant. As measured from a horizontal x axis, what is the direction of this vector? (Hint: The y component of this vector is practically the same as the length; you are given distance of the pullback in the x direction. So you know the x and y components of the vector.)
answer/question/discussion: ->->->->->->->->->->->-> :
I tend to mess these up pretty bad and confuse myself to make this way more complicated than it actually is.
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• What is the direction of the tension force exerted on the mass?
answer/question/discussion: ->->->->->->->->->->->-> :
The direction of the T force on the mass would be a downward arrow.
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• What therefore are the horizontal and vertical components of the tension?
answer/question/discussion: ->->->->->->->->->->->-> :
Vertical component = tension
Horizontal = force pullback of the string
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• What therefore is the weight of the pendulum, and what it its mass?
answer/question/discussion: ->->->->->->->->->->->-> :
I’m not sure how to solve for the weight of the pendulum. I do know that gravity would add to its weight.
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• What is its acceleration at this instant?
answer/question/discussion: ->->->->->->->->->->->-> :
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Then please compare your old and new solutions with the expanded discussion at the link
Solution
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