6 feet + 2 inches per second x 8 seconds.
6 feet + 16 inches
7 feet and 4 inches or 88 inches (72 inches + 16 inches)
Answer:
The distance between Lisa hand and rock is 88 inches.
Step-by-step explanation:
Consider the provided information.
We need to find how far from Lisa's hand is the rock 8 seconds after it hits the surface.
The rock's distance from the lake's surface changes at a rate of −2 inches per second.
In 8 second the distance of rock and surface will be:
Distance = 8×(2) = 16 inches below the surface of lake.
We took positive 2 because distance can't be a negative number.
Lisa holds her hand 6 feet above the lake's surface.
Convert 6 feet into inches.
1 feet = 12 inches
6 feet = 72 inches.
That means the total distance will be:
72+16 = 88 inches.
Hence, the distance between Lisa hand and rock is 88 inches.
