The percentage of railroad crossing crashes that results from a vehicle driving into the side of a train is 25%.
These crashes usually occur as the result of drivers intentionally circumventing warning equipment used at railroad crossings. Drivers typically used their senses to determine the proximity of the train and attempt to cross quickly rather than wait for the train to pass before crossing.
Answer:
0.64 s
Explanation:
<em>d</em> is displacement on the y-axis.
<em>g</em> is gravity.
Assuming we're on Earth, <em>g</em> is
The arrow starts 2 m off the floor, and will assumingly land on the ground at
0 m, so <em>d</em> then is 2 m.
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Power of the glasses required is given as +2.5 D
this shows that person is having Farsightedness in which he can objects placed far clearly but he is not able to see clearly to the near objects
For normal vision near point of eye is 25 cm
Let say person can see the objects clearly at distance "d" from the eye
now from the formula
here given that
also we know that
from above equation now
So the distance of object must be 66.6 cm