A child is on a playground they start to slide down a large slide. At what point is the child in dynamic equilibrium with the slide?(1 point) Responses When the child pushes themselves down the slides. When the child pushes themselves down the slides. As the child is in motion as they are sliding down. As the child is in motion as they are sliding down. When the slide ends and the child has stopped moving . When the slide ends and the child has stopped moving . The child will not reach dynamic equilibrium.
None of the provided responses accurately describe when a child is in dynamic equilibrium with the slide. Dynamic equilibrium in physics refers to a situation where there is continuous movement, but the overall system is in a state of balance. In the context of a child sliding down a slide, dynamic equilibrium would occur if the forces on the child are balanced in such a way that they slide down at a constant velocity, which means the force of gravity pulling the child down the slide is balanced by the frictional force opposing the motion.
However, typically when a child slides down a playground slide, they start from rest, accelerate due to gravity, and continue to accelerate until friction and air resistance build up sufficiently to balance the gravitational force, possibly reaching a constant velocity near the bottom of the slide. This is the closest situation to "dynamic equilibrium" during the slide, when forces are balanced and the child's velocity becomes constant. Therefore, you could say dynamic equilibrium is approached:
- As the child is in motion and their velocity becomes constant due to the balance of gravitational and frictional forces.
In real-world scenarios on a playground slide, perfect dynamic equilibrium is unlikely to be achieved, but the idea of it can apply to the phase when acceleration reduces and a roughly constant speed is maintained.