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.
equolibrium
static friction
inertia
kinetic friction
1 answer
The reason the disc falls straight down into the glass when the index card is quickly pulled away from the glass in a horizontal direction is due to inertia. Inertia is the property of matter that resists changes in its state of motion. When the card is quickly pulled away, the disc tends to maintain its state of rest or motion (in this case, at rest on the card) due to inertia. As a result, the disc continues moving horizontally for a brief moment until the force of gravity overcomes the inertia, causing it to fall straight down into the glass. Static friction and kinetic friction do not play a significant role in this scenario as the disc falls freely due to gravity. Equilibrium, the state of balance or stability, is not relevant in this context.
1 answer