SOLUTION: Can you please help me with this problem?
Throwing a wrench. An angry construction worker throws
his wrench downward from a height of 128 feet with an
initial velocity of 32 f
Algebra.Com
Question 304649: Can you please help me with this problem?
Throwing a wrench. An angry construction worker throws
his wrench downward from a height of 128 feet with an
initial velocity of 32 feet per second. The height of the
wrench above the ground after t seconds is given
by S(t)= 16t^2 32t + 128.
a) What is the height of the wrench after 1 second?
b) How long does it take for the wrench to reach the
ground?
Found 2 solutions by josmiceli, Alan3354:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
When sec
The height above ground is 80 ft
---------------------------------
When (the height above ground is zero)
Solve using quadratic formula
In 2 sec the wrench will reach the ground
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
S(t)= 16t^2 32t + 128.
a) What is the height of the wrench after 1 second?
S(1) = -16 - 32 + 128
= 80 feet
------------
b) How long does it take for the wrench to reach the
ground?
16t^2 32t + 128 = 0
t^2 + 2t - 8 = 0
(t+4)*(t-2) = 0
t = 2 seconds