in which case it is eassier to move a lawn roller???pulling or pushing???

Question

aravindg · Answer

xlain

aravindg · Answer

xplain

anonymous · Answer

same, same force applied in different direction

anonymous · Answer

both r same

aravindg · Answer

sure???

anonymous · Answer

Draw a diagram

anonymous · Answer

yup because there is no difference in force applied there is only difference in direction bro

anonymous · Answer

http://www.physicsforums.com/showthread.php?t=171409

anonymous · Answer

no they aren't  same pulling is more easier than pushing

anonymous · Answer

since by pulling, you decrease the normal push on the mower by the earth, thus decreasing friction.

anonymous · Answer

It is simply because there would be more friction against motion of a lawn roller in case of pushing than in case of pulling. When a lawn roller is pulled by a certain force (F), the vertical component of that pulling force decreases the weight (mg) of the roller which in turn results in decreases of normal reaction . Since frictional force pulling is directly proportional to the normal reaction, friction is less here. When the lawn roller is pushed by the same force (F), the vertical component of the pushing force now increases the weight of the roller which mw results in increase of normal reaction . Therefore here friction is more.

aravindg · Answer

dashini is it only applicable to lawn mover??

aravindg · Answer

is it applicable to all bodies??

anonymous · Answer

for all bodies!!!

aravindg · Answer

wow..then next time i need to move a table i should pull it rather than push it??