iTeachChem•9mo ago

Pulley block khichdi

iTeachChem Helper•4/15/25, 11:02 AM

@Gyro Gearloose

iTeachChem Helper•4/15/25, 11:02 AM

Note for OP

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wilted_flowerOP•4/15/25, 11:02 AM

,rotate

TeXit•4/15/25, 11:02 AM

wilted_flowerOP•4/15/25, 11:02 AM

rn_image_picker_lib_temp_be80c5ca-a6eb-4b96-84c5-70976744dda1.jpg

wilted_flowerOP•4/15/25, 11:13 AM

Nvm my solution is wrong

Sephrina•4/15/25, 11:35 AM

bhiya ye kya hai

Sephrina•4/15/25, 11:35 AM

mera to sar ghum gya

wilted_flowerOP•4/15/25, 11:55 AM

Ye to mains level ka hai-

wilted_flowerOP•4/15/25, 11:55 AM

NEET level

Wwilted_flower Click to see attachment

SirLancelotDuLac•4/15/25, 1:27 PM

1.Summation Tivi=0 se 3T(3)+2T*2-T.v(P)=0 or velocity=13m/s.

(velocity at Q+velocity at P)/2=3, so 13+v=6 or velocity at Q is 7.
Similar to 2, gives velocity as 3m/s,
velocity of pulley B=velocity of block=2m/s

CorrodedCoffin•4/15/25, 1:38 PM

Can u explain the usage of TiVi=0
We take tensions on blocks and point P but not consider T.Vq and T.Vr into eqn

CCorrodedCoffin Can u explain the usage of TiVi=0 We take tensions on blocks and point P but no...

SirLancelotDuLac•4/15/25, 3:12 PM

Assume there is some block on the open end of the string which is being pulled with some velocity, then do summation TiVi=0

nori•4/15/25, 7:24 PM

just a follow-up doubt.. the application of t.v will include the pulleys if we dont consider them to be massless right

SSirLancelotDuLac 1.Summation Tivi=0 se 3T(3)+2T*2-T.v(P)=0 or velocity=13m/s. 2. (velocity at Q+v...

wilted_flowerOP•4/16/25, 5:39 AM

bro can we just aply this for like
any select points/pulleys we choose??

wilted_flowerOP•4/16/25, 5:39 AM

also 2 me kaise likha aapne?

Wwilted_flower bro can we just aply this for like any select points/pulleys we choose??

SirLancelotDuLac•4/16/25, 6:43 AM

No use only and everywhere where string is open so as to speak.

Wwilted_flower also 2 me kaise likha aapne?

SirLancelotDuLac•4/16/25, 6:45 AM

2 wala if you know the formula v_p=(v1+v2)/2 or you can visualize that if in 1 second pulley moves v_p to the left, 2v_p string passes from bottom to top, so their relative Velocity must be 2v_p

SSirLancelotDuLac No use only and everywhere where string is open so as to speak.

wilted_flowerOP•4/16/25, 6:46 AM

ahh makes sense

SSirLancelotDuLac 2 wala if you know the formula v_p=(v1+v2)/2 or you can visualize that if in 1 s...

wilted_flowerOP•4/16/25, 6:47 AM

ahh ok

SSirLancelotDuLac Assume there is some block on the open end of the string which is being pulled w...

CorrodedCoffin•4/16/25, 1:16 PM

but then why dont we in Vq and Vr

CCorrodedCoffin but then why dont we in Vq and Vr

SirLancelotDuLac•4/16/25, 1:16 PM

We add TiVi wherever there is an open end to the string. (Apart from where it is connected to pulleys)

CorrodedCoffin•4/16/25, 1:17 PM

got it

Nnori just a follow-up doubt.. the application of t.v will include the pulleys if we d...

nori•4/16/25, 3:39 PM

SSirLancelotDuLac 1.Summation Tivi=0 se 3T(3)+2T*2-T.v(P)=0 or velocity=13m/s. 2. (velocity at Q+v...

Fusion•4/16/25, 6:03 PM

Doubt
In first part 3T(3)+2T(2) ki jagah 3T(3)-2T(2) nhi hona chahiye?

FFusion Doubt In first part 3T(3)+2T(2) ki jagah 3T(3)-2T(2) nhi hona chahiye?

SirLancelotDuLac•4/17/25, 12:43 AM

2T and v=2m/s are in the same direction, so it would be 2T*2.

wilted_flowerOP•4/17/25, 4:36 AM

Got it bro imma close this out

wilted_flowerOP•4/17/25, 4:36 AM

Thanks

wilted_flowerOP•4/17/25, 4:36 AM

+solved @SirLancelotDuLac

iTeachChem Helper•4/17/25, 4:36 AM

Post locked and archived successfully!

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