A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.90 m/s at an angle of 21.0° below the horizontal. It strikes the ground 4.00 s later. (a) How far horizontally from the base of the building does the ball strike the ground? 33.2 m (b) Find the height from which the ball was thrown. 81.58 X Work only with the vertical components of these quantities. This part of the problem is then a 1-dimensional free-fall example, m (c) How long does it take the ball to reach a point 10.0 m below the level of launching? 1.14 S

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Projectile Motion Problem**

A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of **8.90 m/s** at an angle of **21.0° below the horizontal**. It strikes the ground **4.00 s** later.

1. **How far horizontally from the base of the building does the ball strike the ground?**
   - **Answer:** 33.2 m ✔️

2. **Find the height from which the ball was thrown.**
   - **Answer:** 81.58 m ❌
   - **Note:** Work only with the vertical components of these quantities. This part of the problem is then a 1-dimensional free-fall example.

3. **How long does it take the ball to reach a point 10.0 m below the level of launching?**
   - **Answer:** 1.14 s ✔️

For further understanding, it's crucial to break down the components of the ball's motion into horizontal and vertical segments, utilizing kinematic equations and vector decomposition.

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Transcribed Image Text:--- **Projectile Motion Problem** A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of **8.90 m/s** at an angle of **21.0° below the horizontal**. It strikes the ground **4.00 s** later. 1. **How far horizontally from the base of the building does the ball strike the ground?** - **Answer:** 33.2 m ✔️ 2. **Find the height from which the ball was thrown.** - **Answer:** 81.58 m ❌ - **Note:** Work only with the vertical components of these quantities. This part of the problem is then a 1-dimensional free-fall example. 3. **How long does it take the ball to reach a point 10.0 m below the level of launching?** - **Answer:** 1.14 s ✔️ For further understanding, it's crucial to break down the components of the ball's motion into horizontal and vertical segments, utilizing kinematic equations and vector decomposition. ---
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