anonymous
  • anonymous
Derive a formula for acceleration, tension1 and tension2
Physics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
For 6kg block, Applying Newton's Second Law, T2-T1=6*a2 For 9 kg block, 9*g-T2=9*a1 For 5kg block, T1=5*a3
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anonymous
  • anonymous
For Constraint Equations, The Work Done by String 1(which gives tension 1) would be, T1*x3-T*x2=0 [suppose x3 is the displacement of block of mass 5kg..... and x2....] we get, x3=x2 a3=a2 by double diffrentiating with time. The work done by string 2(which gives tension 2) would be, T2*x2-T2*x1=0 [suppose x1 is the displacement of block 9kg...and x2..of 6kg] similarly, a2=a1 Thus, a2=a1=a3=a.

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anonymous
  • anonymous
wait, in this problem, friction is ignored.
anonymous
  • anonymous
Adding the three equations we got from Netwtons laws, 9*g=9*a1+6*a2+5*a3 9*10=9*a+6*a+5*a 90=20*a a=9/2=4.5 Now, T1=5*a T1=5*9/2 T1=45/2=22.5N T2-T1=6*7/2 T2=22.5+21 T2=43.5N [For frictionless surface]
anonymous
  • anonymous
with friction. i'll tell u in an hr.

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