JEE Main2004PhysicsWork, Power and EnergyActual
A uniform chain of length 2 ~m is kept on a table such that a length of 60 ~cm hangs freely from the edge of the table. The total mass of the chain is 4 ~kg . What is the work done in pulling the entire chain on the table?
Options
- A7.2 ~J
- B3.6 ~J
- C120 ~J
- D1200 ~J
Correct answer
B. 3.6 ~J
Step-by-step solution
Work done = mgh =1.2 0.3 10=3.6 ~J