SOLUTION: Please solve the problem, if possible step by step
A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by the formula h = 735 - 4.9t^2, with
Algebra.Com
Question 87236: Please solve the problem, if possible step by step
A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by the formula h = 735 - 4.9t^2, with t in seconds. How many seconds will it take for the rock to hit the ground (h = 0)?
Question 10 answers
8.3 sec
3.9 sec
1102.5 sec
8.6 sec
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Given where 73.5 meters is the initial height of the rock, how long before it hits the ground?
Set h(t) = 0 and solve for t.
Add to both sides.
Divide both sides by 4.9
Now take the square root of both sides.
seconds.
The best choice of answers is:
3.9 seconds.
RELATED QUESTIONS
A rock falls from a tower that is 132.3 m high. As it is falling, its height is given by... (answered by Alan3354)
A rock falls from a tower that is 53.9 m high. As it is falling, its height is given... (answered by checkley71)
a rock falls from a tower that is 176ft high. As it is falling its height is given by the (answered by jim_thompson5910,rajagopalan)
A rock falls from a tower that is 400 ft high. As it is falling, How many seconds will it (answered by Jeff Gordon)
a rock falls from a tower that is 176ft high. as it is falling , its height is given by... (answered by jim_thompson5910)
Solve the problem. Round to the nearest tenth, if necessary.
A rock falls from a tower... (answered by ankor@dixie-net.com)
A rock falls from a tower that is 93.1 m high. As it is falling, its height is given by... (answered by mukhopadhyay)
A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by... (answered by Alan3354)
A rock falls from a tower that is 73.5 m high. As it is falling, its height is given by... (answered by mananth)