To tackle this problem, it's essential to employ concepts associated with force as per Hooke's law, alongside the forces described by Newton's second law and the concept of potential elastic energy. Since the forces are in equilibrium, the spring force matches the gravitational force. To find the spring constant k, we recognize the compression is 40cm at launch, hence applying the potential elastic energy formula results in determining the energy stored in the spring as 63.72 Joules.
Answer:
The correct response is:
1. KE Increases, PE Increases, ME Increases.
Explanation:
In this context, kinetic energy refers to the energy associated with an object's motion. Kinetic energy can be defined as the energy required to accelerate a mass from rest to a specified velocity, which it maintains once that speed is reached:
KE = 1/2 mv².
This definition indicates that KE is on the rise.
Potential energy is the energy stored in a body due to its position in a gravitational field:
PE = mgh,
which increases as the object is elevated against gravitational pull.
Since both kinetic and potential energies are increasing, it follows that the total mechanical energy (ME) is also rising:
ME = PE + KE.
Answer:
D, C, B, A
Explanation:
The derivative from a velocity-time graph provides the acceleration value.
Segment A
Segment B
Segment C
Segment D
Sorted from the lowest to the highest acceleration:
D, C, B, A
