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but what about the friction coeff. it has nothin to do with it ...and alsowill not the torque of mgcosk be cancelled by normal reaction???
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Q) if the friction coeff between a block and surface of an incline is  and the angle of inclination is k then for what minimum value of k a cubical block of side a and mass m will tople
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please help me guys im really confused over which chem book to refer ..............i have joined narayana but their packages have a lot of printing mistakes
currently im thinking about
chemistry tmh
o p tandon
arihant
please tell me which one is better.............. u can also refer ur own book
please reply soon
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while considering torque acting on any object for eg say a ladder is it necessary to take torque only about free end like the one in contact with the floor or the wall cant we take the torque about centre of mass?
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please help i cant solve this problem,
two balls having masses m and 2m are fastened to two light strings of same length
l .The other end of the strings are fixed at O. the strings are kept in the same horizontal line and th eis released from rest . the collision between the balls is elastic
(a) find velocities of balls just after collision
(b) how high will the balls rise after the collision
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a car is moving on a road banked for 36kmph,and radius 20m.If frictional coeff. between road and wheels is 0.4 find the range of speed for which the car neither slips down nor skids up.
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but the book(H.C.V.) says it will move at an angle of 53 dgrs with the vertical force
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A block of mass 2 kg is pushed against a rough vertical wall with a force of 40N ,coeff. of friction =0.5,another horizontal force of 15N is applied on the block parallel to the wall? will the block move ?if yes which dir.?if no find the friction force exerted by the wall
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OKAY! Now I get it
THANKS DUDE
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THANKS Waterdemon BUT .....
Its still a bit confusing
resultant velocity of plane = sum of 2 vectors wind velocity and velocity of plane
if angle between them is 30 dgrees then the direction of resultant velocity will be between wind V. and plane velocity
then in that case the angle between plane velocity and wind velocity will not be 30 dgrees
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