Answer:
Explanation:
To solve this - determine how long it takes the acron to fall 12 feet.
At that point it will be 1 foot above ground. 13-1 = 12 so you are solving for how long it takes for the acorn to fall 12 feet.
Make a proportion:
seconds = 1 = x
distance 4.8 12
If the acorn falls 4.8 feet every second, how long does it take to fall 12 feet, which is one foot above the ground.
Cross multiply: 4.8x= 12 (1)
4.8x = 12
divide each side by 4.8
4.8x/4.8 = 12/4.8
x = 2.5
It takes 2.5 seconds to be one foot above the ground or fall 12 feet.