Definition of measurements?
1 answer:
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Answer:
12.5 ft/s
Explanation:
Height of person = 6 ft
height of lamp post = 10 ft
According to the question,
dx / dt = 5 ft/s
Let the rate of tip of the shadow moves away is dy/dt.
According to the diagram
10 / y = 6 / (y - x)
10 y - 10 x = 6 y
y = 2.5 x
Differentiate both sides with respect to t.
dy / dt = 2.5 dx / dt
dy / dt = 2.5 (5) = 12.5 ft /s
Answer
given,
Galileo's pulse rate = 75 beats per minutes
Beats per second
1 minutes = 60 s
pulse rate =
= 1.25 beats/s
times in second
t = 0.8 s/pulse
distance of the object
initial velocity = 0 m/s
s = 3.14 m
distance in feet
1 m = 3.28 ft
3.14 m = 3.14 x 3.28 ft
= 10.3 ft
distance in feet is equal to 10.3 ft.