Physics - Mechanics - Work and Energy - Work done by a force - Calculate Work Done
10 problems. P1: 'Push a box with 20N for 5m (same direction). W = ___ J' (100). P2: 'Lift a 3kg object 2m up. W = ___ J (g=10)' (60). P3: 'Pull a wagon with 40N at 60° to horizontal for 10m. W = ___ J' (200). P4: 'A 50N friction force acts on a box sliding 8m. Work by friction = ___ J' (-400). P5: