Question
Compared to falling on a stone floor, a glass may not break when it falls on a carpeted floor because the (A) a) stopping time is longer on the carpet. (B) b) stopping time is shorter on the carpet. (C) c) carpeted floor provides a smaller impulse. (D) d) carpet provides a smaller impulse and a longer time.
Ask by Wilson Santiago. in the United States
Jan 29,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
A glass may not break on a carpeted floor because the carpet allows it to stop more slowly, reducing the force and preventing it from breaking.
Solution
To determine why a glass may not break when it falls on a carpeted floor compared to a stone floor, we need to analyze the concepts of impulse and stopping time.
1. **Impulse** is defined as the change in momentum of an object when a force is applied over a period of time. It can be calculated using the formula:
\[
\text{Impulse} = \text{Force} \times \text{Time}
\]
2. When an object falls and hits a surface, it experiences a force that stops it. The longer the stopping time, the smaller the average force exerted on the object, which can reduce the likelihood of breaking.
3. **Stopping Time**: On a carpeted floor, the stopping time is longer because the carpet compresses and allows the glass to decelerate more gradually compared to a hard stone floor, which stops the glass abruptly.
Now, let's evaluate the options:
- **(A)** a) stopping time is longer on the carpet. **(True)** This is a correct statement.
- **(B)** b) stopping time is shorter on the carpet. **(False)** This is incorrect; the stopping time is longer on the carpet.
- **(C)** c) carpeted floor provides a smaller impulse. **(False)** The impulse is related to the change in momentum, and while the force may be smaller due to longer stopping time, the impulse itself is not necessarily smaller.
- **(D)** d) carpet provides a smaller impulse and a longer time. **(Partially True)** While the stopping time is longer, the statement about impulse being smaller is misleading without context.
The best answer is **(A)** a) stopping time is longer on the carpet. This longer stopping time results in a smaller average force acting on the glass, reducing the chance of it breaking.
Reviewed and approved by the UpStudy tutoring team
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The Deep Dive
When a glass falls on a carpeted floor, the carpet acts like a cushion, increasing the duration of the impact. This longer stopping time reduces the force experienced by the glass upon impact. Essentially, the carpet gives the glass a gentler landing, minimizing the risk of shattering. In contrast, when the glass hits a stone floor, the stopping time is much shorter, resulting in a larger force being exerted on the glass. This rapid deceleration can easily lead to breakage because the glass cannot withstand the intense force applied in such a quick moment.