Answer:
they are not similar. their one angle is only equal
The shortest path can be found by drawing the net for the box, then drawing a straight line on the net between the two points. There are two choices: cross an edge of length 1, or cross an edge of length 2. The latter gives the shorter path, whose length is
... d = √(2² + (1+1)²) = 2√2 ≈ 2.828 units
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In the diagram, the shorter path is the dashed line. The dotted line path has length √10 ≈ 3.162 units.
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It appears that the general solution to this sort of problem is that you want to cross the longest edge of the cuboid.
Solution :
Given :
Height of the tower , h = 45 m
Weight of the weather vane, mg = 190 N
So the potential energy possessed by the weather vane is given by
E = m x g x h
where, E is potential energy
m is mass
g is acceleration due to gravity (taken as 10 m/s2)
h is height
Therefore,
E = m x g x h
E = (mg) x h
E = 190 x 45
E = 8550 J
Use 8,888, then circle the 8 thousandth one (the first one on the left) then underline the 8 at the end (on the right)
100/5 = 20
20 = 20/1
Answer: 20 miles per hour is the unit rate.