Moments Flashcards

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1
Q

define a moment

A

force x the perpendicular distance between the line of action of force and the pivot

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2
Q

what is the formula for torque?

A

torque = Fd

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3
Q

if the object is balancing it is a

A

moment

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4
Q

if the object is rotating it is a

A

torque

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5
Q

define a couple

A

two equal forces in opposite directions separated by a perpendicular distance s.

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6
Q

what is the formula for a couple

A

couple= Fs

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7
Q

give the 2 definitions for centre of mass

A

the point through which the weight acts

the point around which the resultant torque is 0

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8
Q

what is the equation for a balanced system

A

the sum of the clockwise moments = the sum of the anticlockwise moments

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