Posted by jon smith on Wednesday, May 19, 2010 at 2:09am.
A flea pulls on a puck with force 8 microN at an angle of 75°. Another flea pulls on the puck with force 2 microN at an angle of 45°. (See diagram for angle scale.) Draw vectors on the diagram to scale representing the forces. Carefully add the vectors tiptotail. (Use a ruler.) What is the magnitude of the net force on the puck?

physics  drwls, Wednesday, May 19, 2010 at 6:12am
We can't do graphical vector addition for you. We also cannot see your diagram.
For a numerical answer, add the x and y components separately, then use the Pythagorean theorem for the magnitude.

physics  Anonymous, Friday, March 25, 2011 at 5:17pm
(Use the Pythagorean theorem to answer the question.) An airplane takes off going straight west at 340 km/h for 1 hour, then turns and heads south for another hour at 360 km/h before reaching its final destination. What is the airplane's displacement?

physics  Bob, Tuesday, May 24, 2016 at 8:23pm
¯\_ツ_/¯
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