How Does a Fly Impact the Speed of a Moving Car?

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Homework Help Overview

The discussion revolves around a physics problem involving momentum and the impact of a fly on a moving car. The original poster presents a scenario where a fly collides with a car's windshield, and they seek to determine the change in speed of the car as a result of this interaction.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to apply a momentum equation to calculate the change in speed but expresses confusion about the correctness of their result. Some participants question the values used in the calculations and seek clarification on the original poster's approach.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem and questioning the assumptions made in the calculations. There is an emphasis on understanding the reasoning behind the numbers used, but no consensus has been reached regarding the correct approach.

Contextual Notes

There are indications that the problem may involve specific constraints or assumptions that have not been fully addressed, such as the accuracy of the mass of the fly and the initial conditions of the scenario.

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Homework Statement

A stationary 0.195 gram fly encounters the windshield of a 1375 kg automobile traveling at 116 km/h, and sticks to it. What is the change in speed of the car due to the fly

Homework Equations

V(1f)=(m1-m2/m1+m2)V(1i)+ (2m2/m1+m2)V(2i)

The Attempt at a Solution

1374.99/1375.00=(.9999x116) +0=115.998 116-115.98=0.00116 but its telling me that's wrong...
 
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<< solution deleted by Moderators >>
 
Last edited by a moderator:
i kinda see what you're doing and it seems similar to what i was doing but i don't see where u got some of your numbers
 
Last edited by a moderator:
lendav_rott said:
<< solution deleted by Moderators >>

Please do not do students' homework for them here on the PF. Please instead provide hints, ask questions, find errors in their work, etc. That's made pretty clear in the Rules link at the top of the page.
 

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