Recent content by physicsgirl8

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    Kinetic energy - this girl is getting frustrated

    you're a genius ;) thanks for helpin ;)
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    Kinetic energy - this girl is getting frustrated

    nice...so- final final question...and this is just for me...this car (it's called the nissan leaf) it seems by our calculations tonight - that it's power is approx 58 kilowatts...but nissan advertises it's engine power at 80 kilowatts...can anyone think of a reason why there could be a...
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    Kinetic energy - this girl is getting frustrated

    terb...sooooo...576,888.54 divided by 9.9 seconds = 58,271.57 ...but what is the SI unit ...watts ? so 58 kilowatts would be the answer approx ?
  4. P

    Kinetic energy - this girl is getting frustrated

    thanks terb! one more ?? the next question is "Calculate the average power during the acceleration period of 9.9 seconds" anyone that can give me some tips on this final part of the assignment ?! u guys r great !
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    Kinetic energy - this girl is getting frustrated

    this stuff is tough ! They are asking me to find the total work done to get to a speed of 60 mph...wouldn't that be the same as the KE ...in other words - 576,888.54 J ? I'm confuzed ;)
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    Kinetic energy - this girl is getting frustrated

    all I know is that according to the work-energy theorem, if one or more external forces act upon a rigid object, causing its kinetic energy to change from Ek1 to Ek2, then the mechanical work (W) done by the net force is equal to the change in kinetic energy. For translational motion, the...
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    Kinetic energy - this girl is getting frustrated

    or anyone else for that matter! Thx all ;)
  8. P

    Kinetic energy - this girl is getting frustrated

    thank you sooooo much pengwuino! yay ! my hero ! lol one more for you ...the next question is "apply the work -energy theorem to find the TOTAL WORK DONE to get to a speed of 60 miles per hour" could you puhleeeeese help me with this one ?
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    Kinetic energy - this girl is getting frustrated

    this is a 100 level college course ! it isn't supposed be this hard ! anywayyyy - here is the question need some help- problem - the cars mass is 1604 kg- calculate its KE at 60 miles per hour...so- I converted mph to meters per second and got 60 mph = 26.82 meters per second - so -...
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