The reason the disc falls straight down into the glass when the index card is quickly pulled away is due to inertia. Inertia is the tendency of an object to resist changes in its state of motion. When the index card is pulled away quickly, the disc, which is at rest, tends to remain in its state of rest due to inertia, and as a result, it falls straight down into the glass rather than moving horizontally with the card.
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
kinetic friction
kinetic friction
static friction
static friction
inertia
1 answer