JEE Main Physics question
Blocks and , each of mass , are connected by a massless spring of natural length and spring constant . The blocks are initially resting on a smooth horizontal floor with the spring at its natural length. A third identical block , also of mass , moves on the floor with a speed along the line joining and , and collides with . Then
Answer: (B)
Solution
(mass , speed ) collides with (mass , at rest) — since the collision is between two separate rigid bodies (not a stick-together join), and is free to move away from immediately afterward, this is the standard **elastic** collision between equal masses: stops dead and moves off with the
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account