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In Fig. a stationary block explodes int...

In Fig. a stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L. with a mass of 2.0 kg, encounters a coefficient of kinetic friction `mu_L` = 0.35 and slides to a stop in distance `d_L` =0.15 m. Piece R encounters a coefficient of kinetic friction `mu_R`=0.50 and slides to a stop in distance `d_R` =0.30 m. What was the mass of the block?

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The correct Answer is:
3.18 kg or about 3.2 kg
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