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Question 989337: A person of height 1.68 m is walking away from a lamp-post at 1.5 m/s. The light on the lamp-post is 5.3 m above the ground.
At what rate (in m/s to the nearest cm/s) is the length of the person's shadow changing?
At what speed (in m/s to the nearest cm/s) is the tip of the person's shadow moving across the ground?
I'm really stuck
THANK YOU
Click here to see answer by rothauserc(4718)  |
Question 990377: a flower bed is in the shape of a triangle with one side twice the length of the shortest side, and the third side is 12 feet more than the length of the shortest side. Find the dimensions if the perimeter is 112 feet
Click here to see answer by Cromlix(4381)  |
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