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What is a formula to calculate the perceived size of an object depending on its distance?
Wiki User
∙ 14y ago
The perceived size is usually measured in terms of the angle subtended by the object at the observation point.
Suppose an object of length L, is at a distance D. Then the angular size perceived by an observer who is along the perpendicular bisector of the object, is 2*arctan(L/2D). The formula holds for small divergences from the perpendicular bisector but not significant ones.
For example, for a person standing near the base of a tower, the perceived size is arctan(L/D).
Wiki User
∙ 9y ago
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If the formula to calculate work is distance divided by time how do you apply the formula?
You would have a very tough time, because that isn't the formula to calculate work. (distance) divided by (time) is the formula to calculate speed. The formula to calculate work is: (force) multiplied by (distance).
How do you calculate the formula for distance?
== I'm pretty sure the formula for distance is: D== rt (Distance= rate x time) == The formula for distance is: speed x time.
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One formula that is often used is: distance = speed x time
How can you calculate the distance using the formula?
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Formula to calculate work output?
Work Output=Resistance X Distance
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== distance x time== speed ==
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