A projectile is projected from the origin with a velocity of 30
1 answer:
For this we will use kinematic equations.
We need the time of flight to compute the range.
With the given information, the most useful formula is:
Δy=v0yt−g2t2
Because our equation is taking only vertical motion into account,
v0y=30sin(45)
Because we are looking for the range of the object,
Δy=0
This leaves us with only one unknown: t
0=30sin(45)t−g2t2
g2t2=30sin(45)t
g2t=30sin(45)
t=60gsin(45)
For horizontal distance, the formula we need is:
Δx=v0xt
Because we are taking into account the horizontal range,
v0x=30cos(45)
In substituting our derived values into the equation we can see that:
Δx=30cos(45)∗60gsin(45)
Range=30cos(45)∗60gsin(45)
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The two passages have the theme "time erases everything," as shown in the first answer option.
We can arrive at this answer because:
- The passage from the poem "Ozymandias," shows how all the glory, wealth, and magnificence of a great leader fades over time.
- In this poem, we can see that someone seen as the king of kings, can have all his power terminated and buried in the sand.
- In "On Seeing the Elgin Marbles," we can see how memorable moments pass and become memories of "the old days," even though it seems like it will last forever.
In this case, we can see that the two poems reinforce the idea that everything is fleeting, and that time brings the end of all things.
The two passages the question refers to can be seen in the image below.
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