Answer: 4 ft/s
Explanation:
Given
height of man
speed of person 
height if street light
Let x be the distance between person and street light and y be the length of his shadow
From diagram
as the two triangle ADE and ABC are similar therefore we can say that
differentiate above Equation w.r.t time we get
Pretty sure it’s A. Hope this helps.
Answer:
Displacement from the starting position is 103.21m
Explanation:
If you draw these directions, it will create the two legs of a triangle.
Using this method, you can visualize why your displacement is what it is.
Using the pythagorean theorem
Plug in both values
c = 103.2085
c= 103.21
Answer:
The answer is D. density.
E, 63% of the value. I forget the rationale behind it but I learnt that in engineering. 90% confident for that answer.
