How Do You Calculate the Launch Velocity Components in a Football Field Goal?

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Homework Help Overview

The discussion revolves around calculating the launch velocity components in the context of a football field goal attempt and a rocket's trajectory. The original poster presents a scenario involving a kicker's field goal and seeks assistance in determining the horizontal and vertical components of the launch velocity based on given acceleration and angle.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss different methods for calculating velocity components, with one suggesting to first find the overall velocity before breaking it down into components. There is also a transition to a related problem involving a rocket, where the poster shares their calculations for the rocket's launch velocity components and the height clearance over a wall.

Discussion Status

The discussion includes various attempts to solve the problems presented. One participant expresses confidence in their calculations, while another acknowledges a similar outcome, indicating a shared understanding of the rocket problem. However, there is no explicit consensus on the initial field goal problem, as participants are exploring different approaches.

Contextual Notes

The original poster's calculations for the field goal components are based on specific parameters, including time and acceleration, while the rocket problem introduces additional variables such as distance and height of an obstacle. The discussion reflects a mix of problem-solving strategies and interpretations of the scenarios presented.

Miss1nik2
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Can someone PLEASE help me with this problem??

In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0300 s, during which time it experiences an acceleration of 229 m/s2. The ball is launched at an angle of 50.3 ° above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.

I figured out that Ax=146.28 and Ay= 176.19, but I am stuck after that.
 
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well you did the hard part...

I would've found the velocity first then broken it down into components, but I suppose your way is just as good...

you got t = .03 s
you got Ax = 146.28 and Ay = 176.19

well, Velocity = (acceleration) X (time)

so find Vx and Vy
 


I think I got it. Thanks.

But now I need help with...

A rocket is fired at a speed of 63.0 m/s from ground level, at an angle of 37.0 ° above the horizontal. The rocket is fired toward an 18.1-m high wall, which is located 32.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall?

I got Vox=50.31 and Voy=37.91. And I got, at 32 m the time is t=.64s. Then y=22.26. Then subtract 18.1 and I got 4.16.
 


...well in that case I don't think u need help at all, because I got the same answer! good job!
 

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