You drop a stone down a well that is 100.0 m deep. How long will it take for the stone to reach the bottom, ignoring air resista
1 answer:
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Answer: 1.124 m
Explanation:
This situation is a good example of the projectile motion or parabolic motion, and the main equations that will be helpful in this situations are:
x-component:
(1)
Where:
is the initial speed
is the angle at which the venom was shot
is the time since the venom is shot until it hits the ground
y-component:
(2)
Where:
is the initial height of the venom
is the final height of the venom (when it finally hits the ground)
is the acceleration due gravity
Knowing this, let's begin:
First we have to find from (2):
(3)
Rearranging (3):
(4)
This is a <u>quadratic equation</u> (also called equation of the second degree) of the form , which can be solved with the following formula:
(5)
Where:
Substituting the known values:
(6)
Solving (6) we find the positive result is:
(7)
Substituting (7) in (1):
(8)
Finally:
(9)
bentar mo numpang cerita nih
jadi gini
eist yg takut cerita horor Jan di baca
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ok lanjut ya dek ke cerita nya :)
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dah lah sampe disini aja dulu ya dek
byee byee