The coefficient of static friction is 0.70 between the two blocks in Figure P8.32. Thecoefficient of kinetic friction between the lower block and thefloor is 0.20. Force causesboth blocks to cross a distance of 4.5m, starting from rest. What is the least amount of time in whichthis motion can be completed without the top block sliding on thelower block?

Figure P8.32