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A man using a 70kg garden roller on a level surface, exerts a force of 200N at 45 degree to the ground. Find the vertical force of the roller on the ground if a) he pulls it b) pushes it.

2007-04-17 00:57:16 · 1 answers · asked by iqnabeel 1 in Science & Mathematics Physics

1 answers

a) F=mg= 9.81 x 70=687 N
b) F=mg= 9.81 x 70 + 200 cos(45)=828 N

2007-04-17 01:05:34 · answer #1 · answered by Edward 7 · 0 1

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