Answer: D.) 39,200 J
Via the equation of potential energy PE = mgh where m is mass, g is the average gravity on earth and h is the height. In this case m = 400 kg, g = 9.8, h = 10 m thus:
[tex]P.E.=(400kg)(9.8\frac{m}{s^2} )(10m)=39,200 J[/tex]
P.E.= 39,200 Joules
A 400.0 kg storage box is held 10 m above ground by a forklift will have 37,200 J of potential energy.
Given to us
The mass of the storage box = 400 kg
Height of the storage box from the ground = 10 m
Potential energy is defined as the energy stored on the object which is relative to its position.
For example, the potential energy of a steel ball at a particular height is more than the steel ball at the ground.
We know the formula for potential energy is given as,
[tex]\rm PE = mass \times g \times height[/tex]
[tex]\rm PE = 400 \times 9.81 \times 10[/tex]
PE = 39,200 J
Therefore, A 400.0 kg storage box is held 10 m above ground by a forklift will have 37,200 J of potential energy.
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