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perhatikan gambar berikut! Benda A,B, dan C memiliki massa sama yaitu M . Jika konstanta gravitasi dinyatakan G , gaya gravitasi pada benda B sebesar...

perhatikan gambar berikut!

Benda A,B, dan C memiliki massa sama yaitu M. Jika konstanta gravitasi dinyatakan G, gaya gravitasi pada benda B sebesar ...

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R. Haq

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total gaya gravitasiyang dirasakan benda B sebesar N

total gaya gravitasi yang dirasakan benda B sebesar table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell fraction numerator bold 5 square root of bold 7 bold G bold M to the power of bold 2 over denominator bold 144 bold R to the power of bold 2 end fraction end cell end table N

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Diketahui : Ditanya : Benda B mengalami dua gaya gravitasi yang arahnya saling tegak lurus . Gunakan persamaan gaya gravitasi untuk menghitung masing - masing gaya gravitasi yang dialami benda B Hitung resultan gaya pada benda B menggunakan aturan cosinus Dengan demikian total gaya gravitasiyang dirasakan benda B sebesar N

Diketahui :

m subscript A equals M m subscript B equals M m subscript C equals M R subscript A B end subscript equals 3 R R subscript C B end subscript equals 4 R

Ditanya : capital sigma F subscript B

Benda B mengalami dua gaya gravitasi yang arahnya saling tegak lurus open parentheses theta equals 90 degree close parentheses. Gunakan persamaan gaya gravitasi untuk menghitung masing - masing gaya gravitasi yang dialami benda B

table attributes columnalign right center left columnspacing 0px end attributes row cell F subscript A B end subscript end cell equals cell G fraction numerator m subscript A m subscript B over denominator R subscript A B end subscript squared end fraction end cell row blank equals cell G fraction numerator M squared over denominator 9 R squared end fraction end cell row blank blank blank row cell F subscript C B end subscript end cell equals cell G fraction numerator m subscript C m subscript B over denominator R subscript C B end subscript squared end fraction end cell row blank equals cell G fraction numerator M squared over denominator 16 R squared end fraction end cell end table

Hitung resultan gaya pada benda B menggunakan aturan cosinus

table attributes columnalign right center left columnspacing 0px end attributes row cell capital sigma F end cell equals cell square root of F subscript A B end subscript squared plus F subscript C B end subscript squared plus 2 F subscript A B end subscript F subscript C B end subscript space cos space theta end root end cell row blank equals cell square root of F subscript A B end subscript squared plus F subscript C B end subscript squared plus 2 F subscript A B end subscript F subscript C B end subscript space cos space 90 end root end cell row blank equals cell square root of F subscript A B end subscript squared plus F subscript C B end subscript squared plus 0 end root end cell row cell space space space space space end cell equals cell square root of open parentheses G fraction numerator M squared over denominator 9 R squared end fraction close parentheses plus open parentheses G fraction numerator M squared over denominator 16 R squared end fraction close parentheses end root end cell row cell space space space space space end cell equals cell square root of G squared fraction numerator M to the power of 4 over denominator 81 R to the power of 4 end fraction plus G squared fraction numerator M to the power of 4 over denominator 256 R to the power of 4 end fraction end root end cell row cell space space space space space end cell equals cell square root of fraction numerator G squared M to the power of 4 over denominator R to the power of 4 end fraction open parentheses 1 over 81 plus 1 over 256 close parentheses end root end cell row cell space space space space space space end cell equals cell fraction numerator G M squared over denominator R squared end fraction square root of fraction numerator 256 plus 81 over denominator 81 cross times 256 end fraction end root end cell row cell space space space space space space end cell equals cell fraction numerator G M squared over denominator R squared end fraction cross times fraction numerator 1 over denominator 9 cross times 16 end fraction square root of 175 end cell row cell space space space space space space end cell equals cell fraction numerator G M squared over denominator R squared end fraction cross times 5 over 144 square root of 7 end cell row cell space space space space space space end cell equals cell fraction numerator 5 square root of 7 G M squared over denominator 144 R squared end fraction end cell end table

Dengan demikian total gaya gravitasi yang dirasakan benda B sebesar table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell fraction numerator bold 5 square root of bold 7 bold G bold M to the power of bold 2 over denominator bold 144 bold R to the power of bold 2 end fraction end cell end table N

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