An arrow fired vertically from a bow attains a maximum height of 5 m from the level it is released. If the mass of the arrow is 500 grams, work done by the bow on the arrow is greater than which of the following? (Assume, g = 10 m/s²)

20J

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25J

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30J

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35J

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Solution

The correct options are
A
20J

B
25J

The work done by the bow on the arrow would be equal to change in the gravitational potential energy of the arrow, which would be equal to $m \times g \times h$ .
$m$ mass of the arrow 500 g = 0.5 kg
$g$ acceleration due to gravity 10 $m / s^{2}$
$h$ maximum height reached by the arrow 5 m.

$m \times g \times h = 0.5 \times 10 \times 5 = 25 J$

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An arrow fired vertically from a bow attains a maximum height of 5 m from the level it is released. If the mass of the arrow is 500 grams, work done by the bow on the arrow is greater than which of the following? (Assume, g = 10 m/s2)

An arrow fired vertically from a bow attains a maximum height of 5 m from the level it is released. If the mass of the arrow is 500 grams, work done by the bow on the arrow is greater than which of the following? (Assume, g = 10 m/s²)