What formula would i use this for this HW problem? (Aircraft carrier jet launch)

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SUMMARY

The discussion focuses on calculating the acceleration and launch time of a jet fighter from an aircraft carrier, specifically addressing a problem involving constant acceleration. The jet reaches a take-off speed of 175 mph over a distance of 310 ft, which converts to approximately 94.88 meters. Participants emphasize the importance of using kinematic equations for motion with constant acceleration and clarify that acceleration should be expressed in meters per second squared (m/s²), not meters per second (m/s). The conversation also highlights the relevance of maintaining consistent units throughout the calculations.

PREREQUISITES
  • Understanding of kinematic equations for constant acceleration
  • Knowledge of unit conversion between US Customary units and SI units
  • Familiarity with dimensional analysis
  • Basic physics concepts related to motion
NEXT STEPS
  • Research the kinematic equations (SUVAT) for motion with constant acceleration
  • Learn about unit conversion techniques, particularly between mph and m/s
  • Study the principles of dimensional analysis in physics problems
  • Explore practical applications of acceleration calculations in physics
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This discussion is beneficial for students in introductory physics courses, particularly non-math majors, as well as educators teaching concepts of motion and acceleration in a practical context.

Young Bull
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New user has been reminded to use the Template when posting schoolwork problems
*This is an introductory physics class for non-math majors.

A typical jet fighter launched from an aircraft carrier reaches a take-off speed of 175mph over a distance of 310 ft.
  1. assuming the acceleration is constant, what is the jet's acceleration in (meters per second)?
2) how long does i take to launch the jet?
For number 1, i just covert mph to m/s right? (i'm aware it doesn't say m/s^2 - might be a mistake from professor) I just used dimensional analysis
310 ft= 94.88 meters. And number 2, is that simply D=RT? 94.88=78.28T? solve for t?
 
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Welcome to the PF. :smile:
Young Bull said:
what is the jet's acceleration in (meters per second)?
Acceleration has units of m/s^2, not m/s. Is that a typo, or does your question say exactly that?

Also, it's best to start with the kinematic equations for motion with constant acceleration. Can you list what they are?

Given acceleration a, v(t) = ? and x(t) = ?
 
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Why convert any thing to SI units? The problem data is all in US Customary units; keep it there. If necessary, convert the final result to SI if the problem actually states SI units for the result.
 
mph stands for miles per hour, not meters per hour.

Please list the SUVAT equations you are familiar with.
 

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