Chart estimating impact force from a dropped 8.3 lb wrench at various heights.
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Single-page reference chart showing drop height vs. speed and estimated impact force for an 8.3 lb (3.6 kg) wrench. Values are listed in feet/meters, MPH/KPH, and force in lbs/Newtons across heights from 5 to 500 feet (1.5 to 152 m). Calculations assume a 3 in (7.6 cm) deceleration distance. Useful for communicating dropped-object severity and basic risk awareness.