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What is the gravitational potential energy of a # 4 kg# object on a shelf # 3/5 m # high?

Answer 1

Julia Aguilar

#U = 23.5# #"J"#

The gravitational potential energy #U# of this object is given by the equation

#U = mgh#

where

#m# is the mass of the object (#4# #"kg"#)

#g# is the acceleration due to gravity near Earth's surface (#9.81# #"m/s"^2#)

#h# is its height, in #"m"#, above the ground (#3/5# #"m"#)

Thus, we have

#U = (4color(white)(l)"kg")(9.81color(white)(l)"m/s"^2)(3/5color(white)(l)"m")#

#= color(red)(ul(23.5color(white)(l)"J"#

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Answer 2

Nathan Ashcroft

Gravitational potential energy = m * g * h Where: m = mass (4 kg) g = acceleration due to gravity (approximately 9.8 m/s²) h = height (3/5 m)

Gravitational potential energy = 4 kg * 9.8 m/s² * (3/5) m Gravitational potential energy ≈ 23.52 Joules

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.