Work Problem: 3 kg Brick Falling 15 m - 441 J?

AI Thread Summary
The discussion centers on calculating the work done by gravity when a 3 kg brick falls 15 meters. The gravitational force acting on the brick is calculated to be 29.4 N. By using the formula W = F x d, where the force is 29.4 N and the distance is 15 m, the work done is found to be 441 J. This amount reflects the energy converted from gravitational potential energy to kinetic energy during the fall. The calculations and understanding of energy conversion in this scenario are confirmed as accurate.
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Homework Statement


How much work does gravity do when a 3 kg brick falls 15 m?

Homework Equations


W=Fx?

The Attempt at a Solution


I transferred the mass of the brick to weight (gravitational force) and got 29.4. I used this number for the force and the 15 for distance, or x. Does 441 J make sense as the amount of work in this situation?
 
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Your attempt at this is correct. when an object falls, some of the gravitational energy is converted to other forms such as kinetic energy. the amount lost is the amount of work done by gravity.
 

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