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bearhunter [10]
3 years ago
10

A man pushes a lawn mower on a level lawn with a force of 195 N. If 37% of this force is directed downward, how much work is don

e by the man in pushing the mower 5.7 m?
Physics
1 answer:
densk [106]3 years ago
7 0

Answer:

W = 1032.6 J

Explanation:

Net force by which man push the lawn mower is given as

F = 195 N

now it is given that 37% of this force is vertically downwards

so we will have

F_y = 0.37 \times 195

F_y = 72.15 N

now we also know that

F_x^2 + F_y^2 = F^2

here we have

F_x^2 + 72.15^2 = 195^2

F_x = 181.2 N

Now work done by this force to move the lawn mower is given as

W = F_x . d

W = (181.2)(5.7 m)

W = 1032.6 J

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