m1 is mass = 2kg connected by massless string overfrictionless peg to unknown ma

Question

m1 is mass = 2kg connected by massless string overfrictionless peg to unknown mass m2. Mass m1 moves upwardwith acceleration of 2 m/se square g = 9.8 m/s square Apply Newton's second law and find accleration of m1 andms What is tension on string What is mass m2 at end of string? m1 is mass = 2kg connected by massless string overfrictionless peg to unknown mass m2. Mass m1 moves upwardwith acceleration of 2 m/se square g = 9.8 m/s square Apply Newton's second law and find accleration of m1 andms What is tension on string What is mass m2 at end of string?

Explanation / Answer

   out of the two objects consider the 2.00 kgobject first
   the forces on it are the tension T and itsweight 19.6 N
   if we take the upward direction as positive theNewton’s second law of motion becomes
   T – 19.6 N = (3.00 kg) a ......... (1)
   now consider the second mass the forces onthe second mass are the weight andtension        T and
   its acceleration has same magnitude as that of therising mass for this choosing the    T and
   its acceleration has same magnitude as that of therising mass for this choosing the    positive
direction downwards we get
   (9.8) m2 - T = (m2) a........... (2)
   solve the above two equations to get the tension T
   T = ....... N
   acceleration a = ......... m / s2

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