Asked by Pertunia
A man pulls a lawnmower with a mass of 50 kilogram accross a lawn, its pulling force is 400 newtons at angle of 50 degrees with a horizontal line.(a) resolve the force into two components , one parallel to the ground and one perpendicular to the ground .(b) explain why it is easier to pull the lawnmower than to push it.
Answers
Answered by
drwls
(A) the force parallel to the ground is 400 cos50.
The force perpendicular to the ground is 400 sin50..
(B) When pulling the lawnmower, the upward applied force opposes t he weight force. This has the effect of reducing the friction force.
The force perpendicular to the ground is 400 sin50..
(B) When pulling the lawnmower, the upward applied force opposes t he weight force. This has the effect of reducing the friction force.
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