1if that is the case then answer will be T,T but 2 not correct statement of 1.
Assertion :In an atwood machine when the masses r in motion , for a heavy rough pulley tension on both side of pulley r different
Reason : Acceleration of both masses r different
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18 Answers
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1yes Manish Sir is absolutely correct.
So Sir if nothing is mentioned ... should we take it as magnitude or as a vector ??
1357actually magnitude of acceleration is same, but direction is different
24sorry all for wrong ans before.......[6]
assertion is rite and reason is wrong[1]
1Basically the reason for the whole thing is Frictional force. Both assertion and reasoning are a consequence of frictional force.
Hence both assertion and reasoning are true, but reason is not correct explanation.
1357both the mass have different accelerations but same magnitude. So it can't account for the difference in tensions.
Had the tensions being same, then also acceleration are different.
1I dont thnk reason is correct.acceleartion for both masses will be same bcoz string length is fixed.Tension will be different and that is due to mass of pulley and frictional force in play.
1Both assertion and reasoning are true, but reason is not correct explanation of assertion.
In a normal system of pulleys and masses, we consider the mass of pulleys and string as negligible. But in atwood machine, the pulleys have a mass. So the moment of inertia of the pulley has to be considered for our calculation purposes.
This is the reason why friction forces act on the string, so tensions on both sides are different and hence acceleration of masses are different.
4@Virang:U're ans is correct (matches with the given ans)
@eureka I agree with u (I got the same ans) But ans given is B I don't know how ??
@Sanchit NO (C) is wrong think over it again
1i think d right option wud be (c)........i.e. ass. is true nd reas. is false
24shouldnt it be a ??
becoz tension is diff and accelration too....and accelration is a consequence of force(net)