# A block(1) of mass, m1= 3.2 kg, moving at speed 0.85 m/s hits another block (2) m2=2.7 kg at rest. After collision, both blocks stick and slide together on frictionless surface at the same speed. how to find the ratio of Kinetic energy (final/initial) ?

Oct 24, 2015

#### Answer:

I found ${K}_{f} / {K}_{i} \approx 0.5$

Have a look: