If an object moves 40 m north, 40 m west, 40 m south, and 40 m east, what's the total displacement?
2 answers:
Answer:
B. 0 m
Step-by-step explanation:
We are given the movement of an object and are required to find the total displacement.
Now, as we know that 'displacement' refers to the length of the shortest path between two points.
i.e. We are required to find the shortest path the object covers.
Now, we can see from the figure below that the given movement,
40 m north → 40 m west → 40 m south → 40 m east,
will bring the object back to the original position ' O '.
Hence, the total displacement will be 0 m.
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Answer:
The effect of doubling all the dimensions of a triangular pyramid will have on the volume of the pyramid is to increase it by 8 times.
Step-by-step explanation:
i) volume of triangular pyramid =
Area
height
=
(Base of triangle
perpendicular height of triangle)
height
ii) if we double all the dimensions then the three variables((Base of triangle, perpendicular height of triangle, height of pyramid) will be doubled
and the volume of the new pyramid will be 8 times that of the original one.