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kaileasample8259
27.08.2019 •
Physics
You need to set up another simple ramp using the board from part a (i.e., a board of length 1.56 m . (figure 5 if the ramp must be at a 25? angle above the ground, how far back from the bed of the truck should the board touch the ground? assume this is a different truck than the one from part
a.
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Ответ:
d=1.413m
Explanation:
You need to set up another simple ramp using the board from part a (i.e., a board of length 1.56 m . (figure 5 if the ramp must be at a 25? angle above the ground, how far back from the bed of the truck should the board touch the ground? assume this is a different truck than the one from part
a.
to get the distance , we need to take into account the trigonometry of a right angle triangle .
tan of an angle is=opposite/adjacent
sin of an angle=opposite/hypotenuse
cosine of an angle=Adjacent/Hypotenuse
so since we are looking for the parallel distance between the bed of the truck and the point the board touch the ground
cos25=d/1.56
d=1.56cos25
d=1.413m
distance of the ramp from the bed of the truck 1.413m
Ответ:
Because even one light bulb is broken, the others are still lit. Therefore it is not a series circuit