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matthewt894
31.10.2019 •
Physics
The determined wile e. coyote is out once more to try to capture the elusive roadrunner. the coyote wears a new pair of power roller skates, which provide a constant horizontal acceleration of 15 m/s2. the coyote starts off at rest 70 m from the edge of a cliff at the instant the roadrunner zips by in the direction of the cliff. (a) if the roadrunner moves with constant speed, find the minimum speed the roadrunner must have to reach the cliff before the coyote.
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Ответ:
22.91 m/s
Explanation:
Data provided in the question:
Horizontal acceleration, a = 15 m/s²
Distance from start to cliff = 70 m
now,
Time taken to reach 70 m
from Newton's equation of motion, we have
here,
s is the distance
a is the acceleration
t is the time
on substituting the respective values, we get
or
t² = 9.333
or
t = 3.05 s
therefore , the minimum speed =![\frac{\textup{Distance}}{\textup{Time}}](/tpl/images/0353/3889/0a5b5.png)
=![\frac{\textup{70}}{\textup{3.05}}](/tpl/images/0353/3889/d8da3.png)
= 22.91 m/s
Ответ:
The answer is "
"
Explanation:
Please find the complete question in the attached file.
Using formula:
Given:
put the value into the above-given formula: