The complete calculation and corresponding units of the problems in one decimal place is determined as 3.9 m/s, 32.7 kg/cm² and 23.0 m².
The complete calculation and corresponding units of the problems in one decimal place is calculated as follows;
1. (100m) / (26 s) = 3.9 m/s
2. (8.1 kg) / (0.45 cm x 0.55 cm) = (8.1 kg) / (0.2475 cm²) = 32.7 kg/cm²
3. (5.1 m) (4.5 m) = 5.1 m x 4.5 m = 23.0 m²
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