Joe and Suezann are pushing a cart containing sports equipment along one side of their gym in section 8 car to speeding up and section be the car is rolling at a constant speed in section. See the car to speeding up again in section D the card is rolling out a new constant speed.- in which section or sections is the cart kinetic energy increasing
The cart's kinetic energy is increasing in section A and section D.
The cart's kinetic energy is increasing in sections C and D.
To determine in which section or sections the cart's kinetic energy is increasing, we need to understand the concept of kinetic energy and how it changes under different conditions.
Kinetic energy is the energy an object possesses due to its motion. It depends on both the object's mass and its velocity. The formula for calculating kinetic energy is:
KE = 1/2 * m * v^2
where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.
Based on the given information, it's clear that the car, and therefore the cart, goes through different sections with varying speeds. Let's analyze each section individually:
Section A: In this section, the car is "pushing" the cart, implying that an external force is responsible for the movement. Therefore, the cart is gaining kinetic energy during this section.
Section B: The car is rolling at a constant speed. Since the speed of the car is not changing, the cart's kinetic energy remains constant during this section. There is no increase or decrease.
Section C: The car is speeding up again. When an object accelerates, its velocity increases, resulting in an increase in kinetic energy. Therefore, the cart's kinetic energy is increasing in this section.
Section D: The car is rolling at a new constant speed. Similar to Section B, the cart's kinetic energy is constant during this section since the car's speed is not changing.
In summary, the cart's kinetic energy increases in sections A and C, while it remains constant in sections B and D.