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coldgirl [10]
3 years ago
7

I want to make a Twinkie splat when I throw it off a building. Because Twinkies are notoriously hard to crush, I want it to hit

the ground moving at 128ft/s. I am going to throw it straight down, with a speed of 8ft/s off the roof of the building. How high does the building need to be
Physics
1 answer:
Monica [59]3 years ago
3 0

Answer:

s=253.6524712 \approx 253.7

Explanation:

From the question we are told that

Initial speedv=8ft/s

Final speed v=128ft/s

Generally the Newtons  equation of motion is mathematically represented by

V_f^2-V_0^2=2as

with

Therefore

a=g=>9.81m/s^2\\a=32.17ft/s^2

Therefore

128^2-8^2=2*(32.17)*s

16320=2*(32.17)*s

s=\frac{16320}{2*(32.17)}

s=253.6524712 \approx 253.7

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solution:speed is 7.99km ,u=\frac{7990}{(25\times60)}=5.33m/s\\
now let the final velocity after 60s from 7.99km is v.\\
v-u =at\\v=5.33+a\times60\\  =60s+5.33\\now distance travelled during this time will be\\
s_{2}=vt\\
v\times103.6\\
=(60a+5.33)\times103.6\\
=551.84+6216am\\
now total distance travelled  is \\  also\\
s_{1}=ut+(\frac{1}{2})at^{2}      =5.33\times60+(0.5)9\times3600\\
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Now the remaining time to complete rest race was\\
t=(27\times60+43.6)60-60(25\times60)\\
=103.6s\\Now, distance travelled during this time will be\\
s_{2}=vt\\
v\times103.6\\
=(60a+5.33)\times103.6\\
=551.84+6216am\\
now total distance travelled  is \\
s_{1}+s_{2}+7990=10000\\
1800a+319.6+551.84+6216a=2010\\
8016a=2010-871.44\\
8016a=1138.56\\
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3 years ago
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Explanation:

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According to the research, the correct option is b. The main difference between both is that kinetic energy involves motion, and potential energy involves position.

<h3>What are kinetic energy and potential energy?</h3>

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5 0
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