Problema Solution
A rockfalls from a tower that is form 16 behind. As it is falling, it's height is given by the formula
h = 416-16t^2. how many seconds will take for the rock hit the ground? (h=0) Solve for t.
Answer provided by our tutors
the height is given by the formula
h = 416-16t^2
when the rock hits the ground h = 0
by solving the equation 416-16t^2 = 0 we find and consider the positive roots (since the time can not be negative):
t = 5.099 seconds
click here to see the step by step solution of the equation
the rock will hit the ground after 5.099 seconds.