Manipal MET2017PhysicsLaws of Motion
Three blocks of masses m₁, m₂ and m₃ are connected by massless string as shown kept on a frictionless table. They are pulled with a force T₃=40 N.If m₁=10 ~kg , m₂=6 ~kg and m₃=4 ~kg , the tension T₂ will be
Options
- A20 N
- B40 N
- C10 N
- D32 N
Correct answer
D. 32 N
Step-by-step solution
Common acceleration gathered a= F m₁+m₂+m₃ a= 40 10+6+4 =2 ~m / s ^2 gathered Equation of motion of m₃ is aligned T₃-T₂ & =m₃ a 40-T₂ & =4 2 T₂=32 ~N aligned