4. Mr. Ames is dragging a box full of books from his office to his car. The box and books together have a
1 answer:
Answer:
F = 73.7 N = 74 N (rounding off)
Explanation:
In order to get the box to start moving, Mr. Ames must push it with a force equal to the frictional force acting on it. Therefore, this force can be calculated through the following formula:
where,
μ = coefficient of friction = 0.55
R = Normal Force on Box = Weight of Box with books = 134 N
Therefore,
<u>F = 73.7 N = 74 N (rounding off)</u>
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Answer:
7918 J
Explanation:
We are assuming that the floor (field) is completely horizontal since there's no information about that in the statement.
We are going to use the following formula:
Where:
Then, by substituting we have: