A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work done by the force of gravity during the time the particle goes up is

Options

(a) 0.5 J
(b) -0.5 j
(c) -1.25 J
(d) 1.25 J

Correct Answer:

-1.25 J

Explanation:

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