JEE Main202126 Aug 2021Morning ShiftPhysicsWork, Power and EnergyActual
A uniform chain of length 3 m and mass 3 kg overhangs a smooth table with 2 m laying on the table. If K is the kinetic energy of the chain in J as it completely slips off the table, then the value of K is Take g = 10 m s - 2
Correct answer
0
Step-by-step solution
Apply conservation of energy U i + K i = U f + K f − 1 × 10 × 1 2 + 0 = − 3 × 10 × 1.5 + KE K.E. = 45 − 5 K.E. = 40   J