Stars Puck
Please help me this one question of physics?
A young girl is playing shuffleboard on a cruise ship that travels north to 3 m / sec. She hit on the starboard (east), over the platform, 4 m / sec. What is the speed of the puck relative to the stars Fixed? Please show your work so I can track how you have the answer, thank you very much!
The problem described speed vectors vx and vy can be mapped to an X / Y (vz is 0 because the stars are fixed). Since the vectors form a right triangle (vx = vx (cos (0)) and vy = vy (sin (90)) you can find the magnitude of the speed of the puck using the Pythagorean theorem: V ^ 2 = 3 ^ 2 + 4 V ^ 2 ^ 2 = 25 V = sqrt (25) = 5
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