a particle of mass 100g is thrown vertically upwards with speed of 5m/s. the work done by the force of gravity during the time the particle goes up is
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Answer:
1.25 J
Explanation:
Work done = Force × displacement
Force acting here is gravitational so, F = mg
Displacement of the object is s = u^2 / 2g
W = m × g × u^2 / 2g
= m × u^2 / 2
= 5 x 10^-3 kg x 5 × 5 / 2
W = 1.25 Joules
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