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1 answer:
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Answer: 10
Step-by-step explanation:
It appears that , so to check if this is the case, we can use the slope formula.
Since these slopes are negative reciprocals, we can see that this is the case. So, we can take as the base of the triangle and
as the height of the triangle, and then use the formula
.
Using the distance formula,
So, the area is
Answer:
The maximum height is reached after 3.75 seconds.
Step-by-step explanation:
Assuming the deceleration due to gravity is unaided by air resistance, gravity causes the ball to lose vertical speed at the rate of 32 ft/s every second. The initial vertical speed of 120 ft/s will decline to zero when t satisfies ...
... 120 ft/s - (32 ft/s²)t = 0
... (120 ft/s)/(32 ft/s²) = t = 3.75 s
The ball will not go any higher after its vertical speed is zero.
