Question
A body is thrown vertically upward. The work done by
gravity is:ÂSolution
When a body moves upward against gravity, the gravitational force acts downward while the displacement is upward. Since force and displacement are in opposite directions, the work done by gravity is negative. This negative work reduces the body’s kinetic energy as it rises.
More Physics GS Questions
30, 43, 58, 75, 94, ?
48, 24.5, ?, 39.75, 81.5, 206.25, 621.75
Find the missing number in the given number series.
2, 5, 11, 23, 47, ?4, 7, 12, 21, 36, ?
81 72 136 111 ? 278
...- What will come in place of (?) in the given number series.
2, 6, 15, 31, 56, ? 7   4   5   9   20    ?    160.5
101, 103, 107, 109, 113, ?
32, 64, 144, ?, 990, 2970
58, 67, ?, 76, 40, 85
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