Force F on a particle moving in a straight line varies with distance d a...
AIPMT/NEET 2011 | W.P.E Q 3
| We had seen same qus in year 2005 so once again I advice you all please try
to solve old Neet qus and if you are still not following my channel then please
like , share and subscribe right now. Graph between force v/s distance is given , from which we can
understand , the force is variable.
When Force is variable (either magnitude or direction) :
If the force applied on a body is changing its direction or magnitude or both ,
the force is said to be variable.
dW = Sd·F r r
Þ W = ò r Sd·F r ( F r cannot
come out of integral since it is varying) = Area under force v/s distance
curve.
Calculation of area can be done in two steps . In first step we can
calculate the area of rectangle from X = 0 to X = 6 m and in other step we can
calculate the area of triangle ( Right Angled triangle ) from X = 6 m to X = 12
m .
Its an easy qus with simple calculation. Only thing that we need to
care is from x = 0 to x = 3 m , force is zero so no work will be done in that
part.
Don't forget
to LIKE , SHARE & SUBSCRIBE my Channel.
Please Press
BELL icon to receive latest updates.
Don't miss
Hint based videos / concept related videos/ twisted qus videos available only
on this channel , from which you can learn the most solid framework of problem
solving/ clarity in application of different concepts/ formation of other
problems with a small change in data given or language.
Check out
text solution( No need to run videos all the time, solutions are available in
written format)just a click away on
questionnahibanta.blogspot.com
If you have anything to say/discuss ,feel free
to contact Email :
If you want
to be part of Exam related discussion/tips of
day with
others Join me on Facebook page : Question Nahi Banta
You can also
follow me on Instagram : questionnahibanta where you can share and find best
exam related content.
Comments
Post a Comment