Wpe collision

Howd they get deaccel due to frictional part of surface and shouldn't they also find velocity after it exists the frictional part after colliding from the wall im confused
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iTeachChem Helper
@Gyro Gearloose
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Real potato
Real potato7d ago
Ya to find deacc we need u They havent given u in que
Jeepaglu
JeepagluOP7d ago
Exaty Exaftly
Real potato
Real potato7d ago
I mean coef of friction
Jeepaglu
JeepagluOP7d ago
Yeah
Real potato
Real potato7d ago
Rest it is correct They used work energy theorem Finally jab spring ko maxium compress krdega to instantaneous rest pr ayega block to waha velocity zero initially root 40
Jeepaglu
JeepagluOP7d ago
Yeah woh samjha The signs are confusing me Shoulsnt Wf be the opposite sign?
Real potato
Real potato7d ago
Nahi na Work done by friction negative hi hoga See the block is going left friction right me lgega for a distances of 3.6m
Jeepaglu
JeepagluOP7d ago
Oh wait I u dersyood I understood It's on the same side as spring force here Yeah
Real potato
Real potato7d ago
Yeah
Jeepaglu
JeepagluOP7d ago
I'll confirm with my teacher about the mew thingy once
Real potato
Real potato7d ago
Should be given though
Jeepaglu
JeepagluOP7d ago
Yeah

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