shawonna23 said:A 70.0 kg skier rides a 2860 m long lift to the top of a mountain. The lift makes an angle of 14.8° with the horizontal. What is the change in the skier's gravitational potential energy?
What equation would I use to solve this problem?
shawonna23 said:i don't understand what you are saying. What is dU and dH?
Gravitational potential energy is the energy that an object possesses due to its position in a gravitational field. It is the potential for an object to do work as it is pulled by gravity towards another object.
The formula for gravitational potential energy is PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object relative to a reference point.
The higher an object is in a gravitational field, the greater its potential energy. This means that as an object is lifted to a higher position, its gravitational potential energy increases.
Yes, gravitational potential energy can be negative if the reference point used to calculate it is higher than the object's current position. This means that the object has less potential energy than it would if it were at the reference point.
Some examples of gravitational potential energy include a rollercoaster at the top of a hill, a boulder perched at the edge of a cliff, and a diver at the edge of a diving board. In all of these cases, the objects have potential energy due to their position in a gravitational field.