// End script hiding -->
SOLUTION: pleaseplease help with this question....i submitted this last night but had a few typos. ^2 means squared. i've tried putting these numbers into the quadratic formula but am having
Algebra
->
Quadratic Equations and Parabolas
->
Quadratic Equation Customizable Word Problems
-> SOLUTION: pleaseplease help with this question....i submitted this last night but had a few typos. ^2 means squared. i've tried putting these numbers into the quadratic formula but am having
Log On
Ad:
You enter your algebra equation or inequality -
Algebrator
solves it step-by-step while providing clear explanations. Free on-line demo
.
Ad:
Mathway
solves algebra homework problems with step-by-step help!
Quadratics: solvers
Quadratics
Practice!
Practice
Answers archive
Answers
Lessons
Lessons
Word Problems
Word
In Depth
In
Immediate math help from PAID TUTORS
. (paid link)
Click here to see ALL problems on Quadratic Equations
Question 169907
:
pleaseplease help with this question....i submitted this last night but had a few typos. ^2 means squared. i've tried putting these numbers into the quadratic formula but am having problems with coming up with a trinomial to start from
When an object is released and falls freely, its height, h meters, above the ground after t seconds is represented by the relation h = -0.5t^2g+d, where g is the acceleration due to gravity and d is the initial height of the object before it is released. Since the strength of gravity varies from planet tp planet, the value of g is specific to each planet. Supposed a rock is dropped from a height of 100m on Mars and also Venus. On Mars, g=3.7m/s^2 and on Venus, g=8.9m/s^2. How long does it take the rock to fall to a height of 25m on each planet.
Answer by
Alan3354(47455)
(
Show Source
):
You can
put this solution on YOUR website!
I did this one yesterday.
-------------------
Suppose a rock is dropped from a height of 100m on Mars and also on Venus.
On Mars .g=3.7 m/s2 and Venus,g = 8.9m/s2.How long does it take the rock to fall to a Height of 25 m on each Planet
-----------------------
In both cases, it's the time to fall 75 meters.
(s is the distance)
On Mars:
(((75 = (3.7t^2)/2}}}
t = 6.367 seconds
------------
On Venus:
The only change is gravitational acceleration, so start with:
t = 4.105 seconds