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A 2.0 kg book is held 3.0 m above the floor. What is the potential energy of the book? 59 J1.5 J18 J6 J

Sagot :

m= mass = 2 kg

h= height = 3m

g= gravity = 9.8 m/s^2

Potential energy (PE) = mgh

Replacing:

PE = 2 x 9.8 x 3 = 58.8 = 59 J

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