MHT CET2012PhysicsLaws of Motion
Two blocks A and B each of 20 ~kg lying on a frictionless table are connected by a light string. The system is pulled horizontally with an acceleration of 2 ~ms ⁻² by a force F on B . The tension in the string will be
Options
- A10 ~N
- B40 ~N
- C100 ~N
- D120 ~N
Correct answer
B. 40 ~N
Step-by-step solution
The given situation can be shown as The tension T=M_ A a here, aligned M_ A &=20 ~kg and a=2 ~ms ⁻² T &=20 2=40 ~N aligned