Which of the following is an example of an object with potential energy?(1 point)
a ball rolling across the floor at a certain speed
a ball sitting at rest on the floor
a book sliding and coming to a rest on the floor
a book sitting at rest up on a shelf
a book sitting at rest up on a shelf
An example of an object with potential energy is a book sitting at rest up on a shelf.
To determine which object has potential energy, it is important to understand what potential energy is. Potential energy is the energy possessed by an object due to its position or condition. It is the ability to do work as a result of its relative position.
Now let's analyze the given options:
1. A ball rolling across the floor at a certain speed: This object has kinetic energy, not potential energy, because it is in motion.
2. A ball sitting at rest on the floor: This object also does not have potential energy since it is already at ground level and not elevated.
3. A book sliding and coming to a rest on the floor: Similar to the previous option, this object does not have potential energy because it is not in an elevated position.
4. A book sitting at rest up on a shelf: This object has potential energy because it is elevated from the ground level and has the ability to fall and do work due to its position.
Therefore, the correct answer is: a book sitting at rest up on a shelf.