Thread: Mechanics again

S1 and S2 are light inextensible strings, and A and B are particles each of mass 0.2 kg. Particles suspended from a fixed point 0 by the string S1 and particle B is suspended from A by the string. The particle hang in equlibirum...

Find tension in s1 and s2




s1 = 4 N and s2 = 2N

Second part, string S1 is cut and the particles fall, the air resistance acting on A is 0.4N and the air resistance on B is 0.2N

Find acceleration force acting on the particles and tenstion in s2 ???!!

Could someone explain me the concept of this.... exams are close and i dont understand this question at all

Originally Posted by ramzel

S1 and S2 are light inextensible strings, and A and B are particles each of mass 0.2 kg. Particles suspended from a fixed point 0 by the string S1 and particle B is suspended from A by the string. The particle hang in equlibirum...

Find tension in s1 and s2




s1 = 4 N and s2 = 2N

Second part, string S1 is cut and the particles fall, the air resistance acting on A is 0.4N and the air resistance on B is 0.2N

Find acceleration force acting on the particles and tenstion in s2 ???!!

Could someone explain me the concept of this.... exams are close and i dont understand this question at all

forces acting on mass A ...

N up , down, down





forces acting on mass B ...

N up , up , down




combine the two equations ...





sub in your values to find , then go back to either equation and calculate .