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upthrust is an option see option B ... :%) confusdsakibfaiyaz said:It should be D,
Gravitational pull depends on the gravitational field of the earth; which remains same throughout.
Pressure exerted on the VERTICAL SIDES (left and right) is SAME (pascals law).
Pressure difference between horizontal sides (top and bottom) would result in upthrust!
but Since that is not an option, D is the only right answer
Mobeen said:i have the answers for june 01.
hassam said:y dont we use 20 n force...zishi.......i dont undrstnd
airborne1944 said:guys, can potential energy be meaused using this formula: mgv where v is velocity??
actually rate of energy is Power ... E/t=P ... and Power is equal to Force x Velocity ... this means uptill now rate of energy provided=Fv .. here force is resultant weight (m1g-m2g) takimg g common (m1-m2)g x Velocity .. so answer is D ...Xthegreat said:airborne1944 said:guys, can potential energy be meaused using this formula: mgv where v is velocity??
oh, its that question from O/N 2010 right? i don't get it either.
yeah answer is A .. btw ur telling or asking :%)Xthegreat said:the answer is A.
why m1-m2? isnt it m2-m1?abrraza said:actually rate of energy is Power ... E/t=P ... and Power is equal to Force x Velocity ... this means uptill now rate of energy provided=Fv .. here force is resultant weight (m1g-m2g) takimg g common (m1-m2)g x Velocity .. so answer is D ...Xthegreat said:airborne1944 said:guys, can potential energy be meaused using this formula: mgv where v is velocity??
oh, its that question from O/N 2010 right? i don't get it either.
abrraza said:yeah answer is A .. btw ur telling or asking :%)Xthegreat said:the answer is A.
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