Suggested languages for you:

Americas

Europe

20P

Expert-verifiedFound in: Page 78

Book edition
9th Edition

Author(s)
Raymond A. Serway, John W. Jewett

Pages
1624 pages

ISBN
9781133947271

**A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of $8.00m/s$****at an angle of ****below the horizontal. It strikes the ground $3.00s$****later. **

**(a) How far horizontally from the base of the building does the ball strike the ground?**

**(b) Find the height from which the ball was thrown.**

**(c) How long does it take the ball to reach a point $10.0m$ ****below the level of launching?**

The answers are reduced in the following steps.

Taking downward to be the positive ydirection

Resolving velocity into x and y components:

Newton's first law states that an item will not modify its motion until a force is applied to it. The force on an item is equal to its mass times its acceleration, according to the second law. When two things contact, the third law states that they apply forces of equal magnitude and opposing direction to each other.

To find the horizontal position of the ball, use the following formula:

To find the vertical position of the ball, use the following formula:

To find the time it takes the ball to reach ${y}_{f}=10m$, use the following formula:

Rearranging,

94% of StudySmarter users get better grades.

Sign up for free