12 Replies
iTeachChem Helper
@Gyro Gearloose
iTeachChem Helper
Note for OP
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hardcoreisdead
hardcoreisdeadOP7mo ago
I figured out the 1st part At t=mg/5 A will loose contact and at t=2mg/5 B will loose contact Confused with the second part
lmaodedXD
lmaodedXD7mo ago
a=(5t- mg)/m= dv/dt, mass a losing contact at t= 2 and and b at t=4. integrate dv= (5t-mg)/m*dt from t=2 to t=4 and LHS from v=0 to V= required
hardcoreisdead
hardcoreisdeadOP7mo ago
how do u derive the expression for a here ?
lmaodedXD
lmaodedXD7mo ago
a= net force/ mass na, net F= 5t- mg
hardcoreisdead
hardcoreisdeadOP7mo ago
why are u subtracting mg in net F @lmaodedXD
lmaodedXD
lmaodedXD7mo ago
huh mg kyun nahi hatayenge, FBD banao upar tension neeche mg
hardcoreisdead
hardcoreisdeadOP7mo ago
oh right my bad
BakwasKarungaWooIsbakwaas
aah yeh question maine kiya tha last year tricky hai @lmaodedXD bhai isme ek block pehle chalta hai fir thode der baad dusra block chalta hai they dont come in motion together
hardcoreisdead
hardcoreisdeadOP7mo ago
nah it was ez yep theres a time diff +solved @lmaodedXD
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