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:

A particle of mass 100 g is thrown vertically upwards with a speed of

1.	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:
Answer» `-0.5 J` `-1.125 J` `1.25 J` 0.5 J Solution :WORK done by GRAVITY = CHANGE in K.E. `W=1/2mv^2-1/2"mu"^2` `W=0-1/2xx(100)/(1000)xx25=-1.25 J`

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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:

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