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A student throws a 0.140-kg ball straight upwards to a height of 6.40 m. How much work did the student do? answer for:___J

Answer :

Given:

The mass of the ball is,

[tex]m=0.140\text{ kg}[/tex]

The ball reaches the height

[tex]h=6.40\text{ m}[/tex]

To find:

The work by the student

Explanation:

The work by the student is,

[tex]\begin{gathered} W=mgh \\ =0.140\times9.8\times6.40 \\ =8.78\text{ J} \end{gathered}[/tex]

Hence, the work by the student is 8.78 J.

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