A egg is dropped from the roof of a building. the distance it falls varies directly with square of the time it falls. if it takes 1/2 second for the egg to fall eight feet, how long will it take the egg to fall 200 feet?

Answer

12.5 seconds

Step-by-step explanation:

Find the time it takes the egg to travel in 1 second

1/2 second=8 feet

x 2                x 2

1 second=16 feet

Create a proportion:

(x represents time in this equation)

16 feet :1 second=200 feet: x seconds

-solve with cross products

x=12.5

add an image

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.