A person on a merry go round is constantly accerating toward the center
2 answers:
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Answer:
Explanation:
<u>Displacement </u>
It's a vector magnitude that measures the space traveled by a particle between an initial and a final position. The total displacement can be obtained by adding the vectors of each individual displacement. In the case of two displacements:
Given a vector as its polar coordinates (r,\theta), the corresponding rectangular coordinates are computed with
And the vector is expressed as
The monkey first makes a displacement given by (0.198 km,0°). The angle is 0 because it goes to the East, the zero-reference for angles. Thus the first displacement is
The second move is (145 m , -15.8°). The angle is negative because it points South of East. The second displacement is
The total displacement is
In (magnitude,angle) form:
Answer:
The amount of work done in order to lift the box is
Explanation:
Given the weight of each box is
And the man lifts boxes at a height of
We need to find the amount of work done.
The amount of work done is the product of applied force that causes the displacement
.
In our problem force is and displacement is
.
Now, work done
So, the amount of work done in order to lift the box is