which is easy pull or push
Asked by | 24th Jun, 2008, 10:43: PM
It is easy to pull than to push.
When we push or pull with a force F at angle θ with horizontal , the force of push or pull can be resolved into two rectangular components :
1. F cosθ , the horizontal component which helps it to move in forward direction.
2. F sinθ , the vertical component of force.
In case of push , F sinθ acts in vertically downward direction which increases the normal reaction and hence force of friction increases.
As in case of pull, force of friction is less than that in case of push. Hence it is easy to pull than to push.
Answered by | 30th Jun, 2008, 12:13: AM
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