The picture shows a physics lab set up.
Why does the disc fall straight down into the glass when we quickly pull the index card away from the glass in a horizontal direction?
(1 point)
Responses
equilibrium
equilibrium
static friction
static friction
inertia
inertia
kinetic friction
kinetic friction
inertia
The reason the disc falls straight down into the glass when the index card is quickly pulled away horizontally is because of inertia. Inertia is the property of matter that resists changes in its motion.
When the index card is pulled away, the disc initially remains at rest due to static friction between the disc and the index card. However, when the card is quickly removed, there is not enough time for the static friction to act and oppose the motion of the disc.
As a result, the disc continues to remain at rest due to its inertia and gravity pulls it straight down into the glass. In this situation, there is no other force acting on the disc to cause it to move in any other direction. Therefore, the disc falls straight down into the glass due to inertia.
So, the correct answer is inertia.
The correct answer to this question is inertia.
When we quickly pull the index card away from the glass in a horizontal direction, the disc falls straight down into the glass due to the phenomenon known as inertia. Inertia is the tendency of an object to resist changes in its state of motion. More specifically, objects at rest tend to stay at rest, and objects in motion tend to stay in motion with the same speed and direction, unless acted upon by an external force.
In this situation, when the index card is quickly pulled away, the disc was initially at rest on the card. However, due to the inertia of the disc, it tends to resist changes in its state of motion and doesn't immediately move with the card. Instead, it remains stationary for a moment. Since gravity is acting on the disc, it eventually falls straight down into the glass.
Understanding the concept of inertia helps us explain why the disc falls straight down rather than moving along with the index card in a horizontal direction.