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cricket20 [7]
2 years ago
6

A 85.0kg man and a 65, 0kg woman are riding a Ferris wheel with a radius of 20.0m. What is the Ferris wheels tangential velocity

if the net centripetal force on the woman is 115N
Physics
1 answer:
zvonat [6]2 years ago
8 0

Answer:

The Ferris wheel's tangential (linear) velocity if the net centripetal force on the woman is 115 N is <u>3.92 m/s</u>.

Explanation:

Let's use <u>Newton's 2nd Law</u> to help solve this problem.

  • F = ma

The force acting on the Ferris wheel is the centripetal force, given in the problem: F_c=115 \ \text{N}.

The mass "m" is the <u>sum</u> of the man and woman's masses: 85+65= 150 \ \text{kg}.

The acceleration is the centripetal acceleration of the Ferris wheel: a_c=\displaystyle \frac{v^2}{r}.

Let's write an equation and solve for "v", the tangential (linear) acceleration.

  • \displaystyle 115=m(\frac{v^2}{r} )
  • \displaystyle 115 = (85+65)(\frac{v^2}{20})
  • \displaystyle 115=150(\frac{v^2}{20} )
  • .766667=\displaystyle(\frac{v^2}{20} )
  • 15.\overline{3}=v^2
  • v=3.9158

The Ferris wheel's tangential velocity is 3.92 m/s.

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