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(PLEASE ANSWER + 10 POINTS!!)

Rhonda and Matt are pushing a crate across the floor of a warehouse. Rhonda applies a force of 297 newtons (N), while Matt applies a force of 394 N in a direction that is perpendicular to Rhonda's. The sum of these forces corresponds to the length of the hypotenuse of a triangle in the force diagram, as shown in the figure. What is the approximate total force, F?

A. 97 newtons

B. 259 newtons

C. 493 newtons

D. 691 newtons

(PLEASE ANSWER + 10 POINTS!!) Rhonda and Matt are pushing a crate across the floor-example-1

2 Answers

4 votes
a^2 + b^2 = c^2

297^2 + 394^2 = C^2

88209+155236=243445

take the square root of 243445

you get 493.4

which in your answer they're rounded

so your answer is

C. 493
User Knpsck
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6.3k points
7 votes

Answer: C. 493 newtons

Explanation:

In the given picture, we have a right triangle in which the side opposite to the right angle is F (Hypotenuse of the right angle).

The other two sides are of 297 N and 394 N.

We know that Pythagoras theorem says that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Now by Pythagoras theorem we have,


F^2=(297)^2+(394)^2\\\\\Rightarrow\ F^2=88209+155236=243445\\\\\Rightarrow\ F=√(243445)=493.40145926\approx493\ N

Hence, the approximate total force, F = 493 N.

User Printemp
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6.0k points