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lapo4ka [179]
3 years ago
8

A book has been lifted 1.5 meters into the air giving it 30J of potential energy. How much force was used to lift it

Physics
1 answer:
joja [24]3 years ago
6 0

Answer:

Force on the object is 20 N

Explanation:

As we know that work done to raise the book from initial position to final position is known as potential energy stored in it

So here we know that

U = F.s

here we know that

U = 30 J

s = displacement = 1.5 m

so we have

30 = F(1.5)

F = 20 N

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5 0
3 years ago
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Answer:

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Explanation:

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v = ?

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Formula:

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hope it is helpful and briliant

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