The picture shows a physics lab setup.
Index
Card
Why does the disk fall straight down into the glass
when the index card is quickly pulled away from
the glass in a horizontal direction?
(1 point)
Kinetic friction
Equilibrium
Metal Disk
O Inertia
Static friction
Glass
1 answer
The most likely reason why the disk falls straight down into the glass when the index card is quickly pulled away from the glass in a horizontal direction is inertia. Inertia is the tendency of an object to resist changes in its state of motion. When the index card is pulled away, the disk wants to stay at rest due to the inertia of its motionless state. However, once the contact with the card is broken, the force of gravity acts on the disk, causing it to fall straight down into the glass. This happens because there is no longer any external force to keep the disk in its initial horizontal position. The other options listed, such as kinetic friction, static friction, equilibrium, and the glass itself, do not directly explain why the disk falls straight down.
1 answer