A metal ball is placed in a device with a spring that has been compressed past its equilibrium point so that when the spring is released, it will propel the ball into the air. The device is set up on a table one meter above the floor. Which components make up the initial energy of the system?
A) spring potential energy and kinetic energy
B) kinetic energy, spring potential energy, and gravitational potential energy
C) gravitational potential energy only
D) spring potential energy and gravitational potential energy
The answer is D, "spring potential energy and gravitational potential energy". Here are the answers for the following questions:
2. 490 joules
3. 75 joules
4. 650 joules
5. thermal energy
Hope this helps! :)
jenna is 100% correct
Thanks Jenna
no K.E. until the ball is moving
D) spring potential energy and gravitational potential energy
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Because he was outstanding in his field!
To determine which components make up the initial energy of the system, we need to analyze the forces and energies involved.
In this scenario, the metal ball is held in place by the compressed spring. The spring potential energy is stored in the compressed spring due to the deformation of its structure. When the spring is released, this potential energy is converted into kinetic energy as the ball is propelled into the air. Therefore, the spring potential energy is one component of the initial energy of the system.
Next, as the ball is on a table that is one meter above the floor, it possesses gravitational potential energy. This energy is associated with the ball's position in a gravitational field.
Once the ball is released, it will start moving upwards due to the initial conversion of the spring potential energy into kinetic energy. As it moves upwards, the gravitational potential energy will decrease, while the kinetic energy will increase. At the highest point of its ascent, the ball will momentarily have all of its initial potential energy converted into kinetic energy.
Considering these factors, the correct answer is:
B) Kinetic energy, spring potential energy, and gravitational potential energy.