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Andreas93 [3]
3 years ago
15

Cindy exerts a force of 40 N and moves a chair 6 m. Her brother and he pushes a different chair for 6 m while exerting a force o

f 30 N. Andy does: more, less work than Cindy. The difference of their amounts of work is: 20, 40, 60, or 180 Nm.
Physics
1 answer:
Lostsunrise [7]3 years ago
6 0
Wa = F*d = 240J
Wb = 180 J

Andy does less work
Difference is 60J
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Newtons second law in words??​
Dennis_Churaev [7]

Answer:

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Explanation:

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Yuki888 [10]

Answer:

The terminal velocity is v_t  =17.5 \ m/s

Explanation:

From the question we are told that

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      The surface area is   A_s =  935 cm^2  =  \frac{935}{10000} = 0.0935 \ m^2

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The terminal velocity is mathematically represented as

       v_t  =  \sqrt{\frac{2 * m_s *  g }{\dho_s * C  * A } }

Where \rho  is the density of a rectangular prism with a constant values of \rho  =  1.21 \ kg/m^3

            C is the drag coefficient for a horizontal skydiver with a value = 1

            A  is the area of the prism the squirrel is assumed to be which is mathematically represented as

      A =  0.116 * 0.232

       A =  0.026912 \ m^2

 substituting values

      v_t  =  \sqrt{\frac{2 * 0.510 *  9.8 }{1.21 * 1  * 0.026912 } }

     v_t  =17.5 \ m/s

       

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jok3333 [9.3K]

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Explanation:

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