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How much time?

A truck falls off a cliff. If the cliff is 33.5 m high, how much time for the truck to reach the bottom?

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Robert J. | Certified High School AP Calculus and Physics TeacherCertified High School AP Calculus and Ph...
4.6 4.6 (13 lesson ratings) (13)
1
Check Marked as Best Answer
h = (1/2)gt^2
Solve for t,
t = sqrt(2h/g) = sqrt(2*33.5/9.8) = 2.6 sec <==answer
Brad M. | STEM Specialist plus Business, Accounting, Investment & EditingSTEM Specialist plus Business, Accountin...
4.9 4.9 (233 lesson ratings) (233)
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Sun -- you may like KE=PE ... 0.5mv*v = mgh ... Vf= sqrt(2gh) = sqrt 670 ~ 26m/s
==> takes 2.6s from rest ... Best wishes, sir :)
Brice B. | Tutor for High School Level Mathematics and EnglishTutor for High School Level Mathematics ...
2.0 2.0 (1 lesson ratings) (1)
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The equation for this is t=sqrt(2d/g).
 
t= Time
d= Distance
g= Gravitational Acceleration (~9.8 m/s/s)
 
The equation would be:
t=sqrt(2*33.5/9.8)
 
Simplified it becomes:
t= 2.61382834688