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mechanics practice questions(moments, power, resolving , ke and gpe)

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This document contains question relating to the mechanics side of physics such as moments, power, resolving , kinetic energy and gravitational potential energy. Happy learning

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  • August 8, 2022
  • 8
  • 2022/2023
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Mechanics
Past Paper Questions

AT
Booklet Odds
Statics
Set Done Mark
Q
4101 Moments /9
4109 Moments /6
4151 Resolving /8
4153 Resolving /5
4401 KEand GPE /7
4407 Power /8
Total




R:PhrysgeneraNCoversfor Questlons\Coverfor Mechanics Questions.doc1-5-Feb-19

, LEAVE
MARGIN
4101 BLINK




(a) The torque of a couple is given by

torque =Fs.
) With the aid of a diagram explain what is meant by a couple. Label F and s on your
diagram.




***********°******°*°*************.*******e***********°*******o******. **.**** . ***.******




*********°°******* ***********e******e****************°°°******* **************.****. ***********




*************************************************************************ssese*** ******************** tosse*




***************** ***********°***********°*****°************°***** *******°°°°°********




(ii) State the unit for the torque of a couple.

***eo*************eo*********************************************.******** ****************.***************




(4 marks)

(b) The see-saw shown in the diagram consists of a uniform beam freely pivoted at the centre of the
beam. Two children sit opposite each other so that the see-saw is in equilibrium.

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