Recent content by saychanh

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    Calculating Acceleration with Force and Mass

    oh right, i got it. thank you
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    Calculating Acceleration with Force and Mass

    Homework Statement The instruments attached to a weather balloon in the figure below have a mass(m) of 4.8 kg. The balloon is released and exerts an upward force(F) of 109 N on the instruments. What is the acceleration of the balloon and instruments? Homework Equations F = ma The...
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    Solving problems using Half Angle identities

    Thank you so much
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    Solving problems using Half Angle identities

    Homework Statement Solve for x using half-angle identities cos (x/2) = -√2 / 2 Homework Equations cos(x/2) = ± √(1+cosx)/2 The Attempt at a Solution I am trying to figure out what to do with the identity, but I have no idea how to start. I know that x = 270 degrees or 3pi/2, but I do not...