## Exam Information

Login / Sign Up to View Document

## Sample Document Text

PHYS2010 EXAM 2, VERSION 0001, SPRING 2006 1
The following two questions refer to the following situation: A cannonball is fired with
an initial speed v0 = 100 m/s, at an angle ? = 60? from the horizontal. The cannon
is atop the edge of a cliff at a height h above a plain. The cannonball strikes the
ground at a distance r from the cliff. In the diagram, three points on the trajectory
are labeled: A where the projectile leaves the barrel of the cannon; B at the highest
point of the trajectory; and C the point in the air immediately before the ball hits the
ground. Air resistance is negligible.
1. The speed of the projectile during its flight is at a maximum at:
A) Point A B) Point B C) Point C D) None of these
The speed is maximum at Point C. This can be shown by noting that velocity in x is
constant, while (absolute value of) velocity in y is maximized at point C.
2. Suppose the cannonball is in the air for 20.0 s. To three-place precision, what is the
distance r?
A) 1.00 km B) 2.00 km C) 0.707 ...

## Related Documents

Ground Floor Exam

Demonstration Exam

Horizontally Exam

Unauthorized Exam

In/on/at a Place Exam

Acceleration Exam

Incline Plane Notes

Horizontally Exam

Convenience Exam

Acceleration Exam

Unauthorized Exam

Incline Plane Exam

Incline Plane Exam

Horizontally Exam

Horizontally Exam

Horizontally Exam

© Copyright 2020 , Koofers, Inc. All rights reserved.

The information provided on this site is protected by U.S. and International copyright law, and other applicable intellectual property laws, including laws covering data access and data compilations. This information is provided exclusively for the personal and academic use of students, instructors and other university personnel. Use of this information for any commercial purpose, or by any commercial entity, is expressly prohibited. This information may not, under any circumstances, be copied, modified, reused, or incorporated into any derivative works or compilations, without the prior written approval of Koofers, Inc.