physics

Two forces acting on a body in opposite directions,have the resultant velocities of 10newton. if they act at right angles to each other, the resultant is 50 newton.find the two forces.

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  1. A-B = 10N
    A=10+B-----Eq 1

    given
    50=root A2+B2 its square

    now square on both aise..
    25000=(10+B)+ B2
    2500=100+B2+20B +B2
    B2+ 10B-1200=0
    B2-30B+40B-1200=0
    B(B-30)+40(B-30)=0
    (B+40)(B-30)=0
    B=30 &
    from eq 1
    A =40

    i hope soo u might be safistied with my answer.

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  2. Its really the answer

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  3. yes,answer is correct

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  4. Thanks

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  5. how did you get the right answer
    even when you didnt know that 30 and 40 are the answers

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