Question

. A child lifts a book of mass 1 kg from the table to a cupboard at a height of 2 m from the
floor. What is the potential energy of the book with respect to the floor?​

Answer 1

Answer:

20J

Explanation:

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given,

• mass,m=1 kg
• h=2m
• g=9.8m/s^2=10m/s^2

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Potential energy,

U=mgh

=1×2×10

=20J

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hope it helps...!!!