If (on earth) an object falls 18m and loses 36J of GPE. What is the objects mass?
Answers
The gravitational potential energy of the object falling from 18 m height is 36 J. Thus, its mass is 0.2 Kg.
What is gravitational potential energy?
Gravitational potential energy of an object is the energy generated by virtue of its position in a gravitational field. The magnitude of gravitational potential energy is directly proportional to the mass of the object , height from the surface and the acceleration due to gravity.
GPE = mgh
The height of the object falling = 18 m
Gravitational potential energy = 36 J
Acceleration due to gravity in earth = 9.8 m/s².
Mass of the object = GPE/ (gh)
= 36 J/ (18 m×9.8 m/s² )
= 0.20 Kg.
Therefore, the mass of the object is 0.20 Kg.
To find more on gravitational potential energy, refer here:
#SPJ2
Where 'g' is the gravitational constant (9.81 m/s^2)
If you're solving for m, you can change the equation to be (PE/gh)=m.
m=(36J/18m*9.81m/s^2)
m=.2kg
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