AIIMS2018PhysicsLaws of Motion
In the diagram 100 ~kg block is hanging from a pulley and force F is applied on the string to keep the system in equilibrium. If the whole system is moving up with a constant velocity v , then tension at point P in the string will be
Options
- A735 ~N
- B1050 ~N
- C1470 ~N
- D1200 ~N
Correct answer
C. 1470 ~N
Step-by-step solution
Tension in each part of the string will be F. Assume tension at point P is T . aligned & T=3 F & 2 F=m g & 2 F=100 9.8 ~N & F=490 ~N & T=3 490=1470 ~N aligned