An egg is dropped from a height of 90 ft. if acceleration due to gravity is -16 ft/s2 and initial velocity is ofts, approximately how
long will it take for the egg to reach the ground?

Step-by-step explanation:

Use the height equation:

y = ½ a t² + v t + h

where y is the height at time t,

a is the acceleration due to gravity,

v is the initial velocity,

and h is the initial height.

Here, a = -16, v = 0, and h = 90.

y = -8t² + 90

When the egg lands, y = 0.

0 = -8t² + 90

8t² = 90

t² = 45/4

t = 3.35

It takes approximately 3.35 seconds for the egg to land.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

b

step-by-step explanation: