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Irina18 [472]
3 years ago
13

A rock is dropped from a tall building. After falling for three seconds what is its final velocity?

Physics
2 answers:
evablogger [386]3 years ago
6 0
I THINK v = 9.8 is the final velocity on impact. Hope I helped
netineya [11]3 years ago
3 0
Answer: 29.4m/s
a=9.8m/s ²
V=a*t
=9.8*3
=29.4
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Mary and her younger brother Alex decide to ride the carousel at the State Fair, Mary's and Alex's  angular speed M and tangential speed vM is mathematically given as

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<h3>What is Mary's and Alex's angular speed M and tangential speed vM?</h3>

Generally, the equation for angular speed is mathematically given as

w=2\pi /T\\\\Therefore\\\\w=2\pi/3.9

w = 1.61 rev/see 3.9

Centripetal acc mary = v^2/r

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tang. speed of mary = 1.61x2 = 3.22 m/s

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<u>Answer:</u>

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<u>Step-by-step explanation:</u>

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