| student fires a cannonball horizontally from on top of a building as shown. The mall remains in the air for 6s. Neglect drag. 10m/s ound all values to nearest whole number, if necessary. laxl = unit |ayl =| unit |vyl unit unit unit 1 2 4. 5 direction of motion at launch: > 3.

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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A student fires a cannonball horizontally from on top of a building as shown. The
ball remains in the air for 6s. Neglect drag.
10m/s
Round all values to nearest whole number, if necessary.
laxl =
unit
|ayl =|
unit
t
|Vxl
|vyl
unit
unit
unit
1
4
direction of motion at launch:
Transcribed Image Text:A student fires a cannonball horizontally from on top of a building as shown. The ball remains in the air for 6s. Neglect drag. 10m/s Round all values to nearest whole number, if necessary. laxl = unit |ayl =| unit t |Vxl |vyl unit unit unit 1 4 direction of motion at launch:
Expert Solution
Step 1

ax = acceleration in x-direction = 0m/s2

ay = acceleration in y-direction = 10 m/s2

Vx = speed in x -direction = 10 m/s (always because acceleration = 0m/s2 in x-axis)

Vy = speed in y-direction 

Vy = Uy  + ay .t

Uy  = initial velocity in y-direction =0m/s , ay = 10 m/s2 , t= time of observation,

So, Vy = 0 + 10 .t

Vy = 10t

The direction of motion is initially horizontal(along the x-axis) and after some time that path becomes parabolic.

 

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