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

  • Thread starter 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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  • #2
berkeman
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Welcome to the PF. :smile:
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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  • #3
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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.
 
  • #4
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mph stands for miles per hour, not meters per hour.

Please list the SUVAT equations you are familiar with.
 

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