Question

A box of weight 100 N is lifted to a height of 10 m above ground. How much potential energy will be stored in the box?
9800 J
1000 J
2000 J
none of the above​

Answer 1

Answer:

Answer ➹

Question :- A box of weight 100 N is lifted to a height of 10 m above ground. How much potential energy will be stored in the box?

9800 J

1000 J

2000 J

none of the above

$\:$

Answer 2

Explanation:

$\huge\bf\star\fbox\red{\underline{Answer:-}}$

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$\Large\bf\star\fbox\red{\underline{Question:-}}$

$\leadsto$ $\mathtt{A\ box\ of\ weight\ 100\ N\ is\ lifted\ to\ a\ height\ of\ 10\ m\ above\ ground.\ How\ much\ potential\ energy\ will\ be\ stored\ in\ the\ box?}$

$\leadsto$ $\bf\star\fbox\red{\underline{Solution:-}}$

$\leadsto$ $\bf\star\fbox\purple{\underline{The\ answer\ is\ 1000j}}$

$\leadsto$ $\large\bf\star\fbox\red{\underline{Formula\ of\ potential\ energy:-}}$

$\leadsto$ $\mathtt{P.E\ =\ mgh}$

$\leadsto$ $\Large\bf\star\fbox\red{\underline{Explanation:-}}$

$\leadsto$ $\bf\fbox\purple{\underline{Given:-}}$

$\leadsto$ $\mathtt{Weight\ =\ 100\ kg}$

$\leadsto$ $\mathtt{Height\ =\ 10\ m}$

$\leadsto$ $\mathtt{Potential\ energy\ =\ ?}$

$\leadsto$ $\mathtt{\underline{●\ We\ know\ that:-}}$

$\leadsto$ $\mathtt{Weight\ =\ Mass × Acceleration}$

$\leadsto$ $\mathtt{100 = mass × 10}$

$\leadsto$ $\mathtt{\dfrac{100}{10} = mass}$

$\leadsto$ $\mathtt{Mass = \dfrac{100}{10}}$

$\leadsto$ $\mathtt{Mass = 10kg}$

$\leadsto$ $\mathtt{\underline{●\ We\ know\ that:-}}$

$\leadsto$ $\mathtt{●\ P.E\ =\ mass × acceleration × height}$

$\leadsto$ $\mathtt{●\ P.E\ =\ 10 × 10 × 10}$

$\leadsto$ $\bf\star\fbox\purple{\underline{Potential\ energy\ =\ 1000j}}$

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$\large\bf\star\fbox\red{\underline{Hence,\ the\ required\ answer}}$