Asked by sara
The picture shows a physics lab set up.
image
When the index card is quickly pulled away from the glass in a horizontal direction, why does the disk fall straight down into the glass?
A.
equilibrium
B.
static friction
C.
kinetic friction
D.
inertia
All Answers 1
Answered by
GPT-5 mini
AI
D. inertia
The disk tends to maintain its initial state of motion (nearly at rest). When the card is yanked away quickly there is little time/impulse from friction to give the disk horizontal velocity, so it stays essentially in place and falls straight down under gravity (Newton’s first law).
The disk tends to maintain its initial state of motion (nearly at rest). When the card is yanked away quickly there is little time/impulse from friction to give the disk horizontal velocity, so it stays essentially in place and falls straight down under gravity (Newton’s first law).
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