physics basic fbd
Which one is correct? I often get confused and end up getting wrong answer T-T sry if this is dumb lol
40 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.2nd one is correct
The reason pls
Many ppl including me took the first one in exam and got it wrong
Both are correct
You will get same ans either way
@Real potato you mean Tsecx = Tcosx?
why are we equating the 2 different eqn i meant that if we proceed by taking either the components of mg or of Tension we will get the same result
How tho? We are getting diff
It would be a lot better if you show the actual que
How was I supposed to know this tho , bc like generally I split the mg component and do it
Even today for a spring constraint I split the weight , but they split the normal force and got the ans while I got the reciprocal
It’s kinda a general question bc I did this long back, let me try find it tho
Supposed to know what?
Like I should split the tension and not weight
You can apparently split weight i did it see it carefully
its should not even matter what u split as long as you split right
U got mgcostheta = T cos2theta, I got mgcostheta = T tho
Sorry I am rlly confused
What did I do wrong in the picture I sent?
You didnt take the force 'F'
i dont think there is something wrong with splitting
Oh yes the pseudo force, let me find the actual question and send
In that there is no pseudo force
No its not pseudo force
If it is inside a vehicle
I got this, I’ll send the other question tho a sec pls :]
Oh i got it... you saying yhe system is in a car ?
Yah I did similar thing so I just told pseudo force on mistake sry lol
This one too I got confused in
11th question
@Priyam Alok
ig its asking how much is spring compressed?
for that take normal force split it and equate it with Kx
Yah I did that and equated Nsin53 to mg, but in the back answer they equated N = mgcos37
For one thing they used N component and for the other they used mg component, I used N component only
Wait writing simpler solution
Thankyou so much
My internet was gone... Will send in morning
Oh ok no worries, but could u just tell me which is correct? Tomorrow is my exam 🙃 sorry for the disturbance
they did not used mg for the other , mg has no role on the planck its just a way to show mg on block
i tried it too and idk why ans not coming it should be correct
Yes but the block applies mg on the plank tho? So won’t we consider that as like another normal? What wrong in splitting that?
that is the only normal we are taking
this is sorted?
yo we good?
+solved @Gamertug @Priyam Alok
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