jesong02 jesong02

06-04-2017
Mathematics

contestada

A ball is dropped from a treetop 256 feet above the ground. How long does it take to hit the ground?

Respuesta :

06-04-2017

Assuming gravity is constant and ignoring wind resistance...

h(t)=hi+vit-16t^2....vi=0 and hi=256 so

h(t)=256-16t^2

When it hits the ground, h=0 so

256-16t^2=0

16t^2=256

t^2=16, and since t>0

t=4 seconds

Answer Link

Otras preguntas

What is a direct object in french?How does it affect certain verbs, please give examples.

The ________ managed the government of Egypt

the graph of a fuctions is made up of two connected segments. The y intercept of the graph is 4. From x=0 to x=5 , the slope of the graph is 4/5. From x=5 to x=

In the number 80,245,316, which digit is in the ten-million's place?

A rectangle has an area of 600.6m2. One of the sides is 7.8m in length. Work out the perimeter of the rectangle.

BRAINLIEST pleae help!!! The sum of 27 consecutive odd integers is 3^9=19683. Compute the least of these consecutive odd integers. The answer is 703

Please help and thank you

Athens and Sparta were both countries. city-states. monarchies. empires.

What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4. -2 - 2

A large hardware store collects data about what its customers buy and stores these data in a data warehouse. if you were the store's buyer for lawn equipment, w