Chapter 3, Problem 51AP

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 25.0 m/s. A net is positioned a horizontal distance of 50.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the daredevil?

To determine
The height the net to be placed above the cannon in order to catch the daredevil.

Explanation

The initial components of the velocity are,

v0x=v0cosÎ¸

Here,

v0 is the initial velocity

Î¸ is the angle of projection

v0x=(25.0â€‰m/s)cos45.0Â°=17.68â€‰m/sv0y=v0sinÎ¸=(25.0â€‰m/s)sin45.0Â°=17.68â€‰m/s

The required to travel 50.0â€‰m horizontally is,

t=Î”xv0x

Here,

Î”x is the horizontal displacement

t=50.0â€‰m17

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