Joana C

10 November 2024 13:12

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Joana C

10 November 2024 13:12

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Community

10 November 2024 16:52

Jawaban terverifikasi

<p>1. W = 40 N</p><p>&nbsp; &nbsp; &nbsp;h = 1 m</p><p>&nbsp; &nbsp; &nbsp;s = 2 m</p><p>&nbsp; &nbsp; &nbsp;W/F = s/h</p><p>&nbsp; &nbsp; &nbsp;F = (W x h)/s</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = (40 x 1)/2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = 20 N</p><p>&nbsp; &nbsp; &nbsp;W = F x s</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 20 x 2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 40 J</p><p>&nbsp; &nbsp; &nbsp;Jadi besar usahanya adalah 40 Joule</p><p>&nbsp;</p><p>2. h = 3 m</p><p>&nbsp; &nbsp; &nbsp;s = 5 m</p><p>&nbsp; &nbsp; &nbsp;KM = s/h</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 5/3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 1,67</p><p>&nbsp;</p><p>3. W = 500 N</p><p>&nbsp; &nbsp; &nbsp;h = 1,5 m</p><p>&nbsp; &nbsp; &nbsp;s = 3 m</p><p>&nbsp; &nbsp; &nbsp;KM = s/h</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 3/1,5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2</p><p>&nbsp; &nbsp; &nbsp;F = (W x h)/s</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = (500 x 1,5)/3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; = 250 N</p><p>&nbsp; &nbsp; &nbsp;Keuntungan Mekanisnya &nbsp;= 2 dan Gayanya = 250 N</p><p>&nbsp;</p><p>4. lk = 2,5 m</p><p>&nbsp; &nbsp; &nbsp;lb = 3 - 2,5 = 0,5 m</p><p>&nbsp; &nbsp; &nbsp;W = 2.000 N</p><p>&nbsp; &nbsp; &nbsp;W x lb = F x lk</p><p>&nbsp; &nbsp; &nbsp;F = (W x lb)/lk</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= (2000 x 0,5)/2,5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= <strong>400 N</strong></p><p>&nbsp;</p><p>&nbsp; &nbsp; &nbsp;KM = W/F</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2000/400</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= <strong>5</strong></p><p>&nbsp; &nbsp;</p><p>&nbsp;</p>

1. W = 40 N

     h = 1 m

     s = 2 m

     W/F = s/h

     F = (W x h)/s

        = (40 x 1)/2

        = 20 N

     W = F x s

          = 20 x 2

          = 40 J

     Jadi besar usahanya adalah 40 Joule

 

2. h = 3 m

     s = 5 m

     KM = s/h

             = 5/3

             = 1,67

 

3. W = 500 N

     h = 1,5 m

     s = 3 m

     KM = s/h

             = 3/1,5

             = 2

     F = (W x h)/s

        = (500 x 1,5)/3

        = 250 N

     Keuntungan Mekanisnya  = 2 dan Gayanya = 250 N

 

4. lk = 2,5 m

     lb = 3 - 2,5 = 0,5 m

     W = 2.000 N

     W x lb = F x lk

     F = (W x lb)/lk

         = (2000 x 0,5)/2,5

         = 400 N

 

     KM = W/F

             = 2000/400

             = 5

   

 


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