sam_pi
  • sam_pi
in the AP physics textbook it says that if 0 denotes the angle that the vector a=3i+4j makes with the +x axis, then tan 0 =4/3, so 0 =tan^-1(4/3) =53.1 degrees I don’t understand how did they use (4/3) to get the result 53.1 degrees ? 4/3 = 1.3333 is not 53.1 and even if i multiplied it with the angle i don’t get 53.1 4/3 *45=59.9985 if I use tan in the calculator I get 0.0232 so how did they get 53.1 ?
Physics
jamiebookeater
  • jamiebookeater
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sam_pi
  • sam_pi
i get it now , I just had to use another calculator :)

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