Q

A 1 kg object is raised 10 m above the earth's surface. Find the work done by gravity. (g = 9.8 m/s²)

RRB Group D 20/09/2018 / Shift-II 2018
✓ Answer: D -98 J
Gravity opposes the upward displacement, so W = -mgh = -1 × 9.8 × 10 = -98 J.
← Previous Question Next Question →

📚 Related Questions — Mechanics

1 Which statement most appropriately describes the factors affecting the momentum of a… 2 Which physical quantity changes or tends to change an object’s state of… 3 Two machines lift the same load. Machine P requires an effort of… 4 Zero acceleration means ______. 5 Which scenario best demonstrates an unbalanced force acting on an object? 6 If two objects have the same velocity, which one will have more…