Oblicz siłę i prace : a) m=2kg s=3m b) m=5,5kg s=8m c) m=8,2kg s=3,5m d) m=7kg s=50cm

g = 10 m/s² = 10 N/kg a) F = m × g F = 2kg × 10N/kg = 20 N W = F × s W = 20N × 3m = 60 J b) F = m × g F = 5,5kg × 10N/kg = 55 N W = F × s W = 55N × 8m = 440 J c) F = m × g F = 8,2kg × 10N/kg = 82 N W = F × s W = 82N × 3,5m = 287 J d) s = 50 cm = 0,5 m F = m × g F = 7kg × 10N/kg = 70 N W = F × s W = 70N × 0,5m = 35 J