- #1
prowler_sn
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hi there i was looking at this video on utube and have two questions regarding it.
at 1:02. the person starts to rotate the apparatus. my first question is that HOW CAN U DRAW THE FREE BODY DIAGRAM OF THE MASS ATTACH TO THE SPRING while its rotating?
i know there is the mg downward from the mass. there is the tension force pointing towards the spring and another tension force up in the string the mass is attach to. am i missing anything?
an other question is that what is the purpose of the counter mass?
thanks in advance
cheers
p.S this is NOT a homework question
at 1:02. the person starts to rotate the apparatus. my first question is that HOW CAN U DRAW THE FREE BODY DIAGRAM OF THE MASS ATTACH TO THE SPRING while its rotating?
i know there is the mg downward from the mass. there is the tension force pointing towards the spring and another tension force up in the string the mass is attach to. am i missing anything?
an other question is that what is the purpose of the counter mass?
thanks in advance
cheers
p.S this is NOT a homework question
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