Problem No. 4.1:- A man pushes a lawnmower with a 40N force directed at an angle of 20 degree downward from the horizontal. Find the word done by the man as he cuts a strip of grass 20m long
Problem No. 4.1:- A man pushes
a lawnmower with a 40N force directed at an angle of 200 downward from the horizontal.
Find the word done by the man as he cuts a strip of grass 20m long.
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