In this challenge we will find the angle needed to aim one robot at another as in  the diagram below.     The lower robot travels at constant speed vfast and the upper robot travels at  constant speed vslow. So both have zero acceleration. The initial vertical distance  between them is D. Your challenge is to find the angle needed to cause a  collision, the time of the collision, and the location of the collision.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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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In this challenge we will find the angle needed to aim one robot at another as in 
the diagram below.

 

 

The lower robot travels at constant speed vfast and the upper robot travels at 
constant speed vslow. So both have zero acceleration. The initial vertical distance 
between them is D. Your challenge is to find the angle needed to cause a 
collision, the time of the collision, and the location of the collision.
Some notes that may help:
1. We can treat motion along the horizontal and vertical in the picture 
separately and write separate equations for them. Let’s call horizontal x and 
vertical y. 
1. We then need to find kinematic equations for x and y for each robot. In 
other words you need equations for xslow, yslow, xfast, yfast.
1. The fast robot has velocity in the x and y directions. The x-component of the 
robot’s velocity is while the y component is 
. The initial position of the fast robot is (0,0). So we can write the kinematic 
equations (eq 1) as 
 and 
1. The slow robot has velocity only in the x direction. In the y direction the 
velocity is zero. The initial position of the slow robot is (0,D). 
The data will be provided or measured in lab. It is strongly suggested you work 
with the equations in variable form as above, and plug in the numbers only at the 
last step. 
vslow = _____
vfast = _____
D = _____
*********************************************************
here is the data but don't plug in until the end. Vs=1 m/s, vf = 2 m/s, D = 3 m

y
slow
D
fast
Transcribed Image Text:y slow D fast
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