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A particle moves in the X-Y plane according to the equation r = (i + 2j)A•cosωt Find the amplitude of the motion of the particle.

A particle moves in the X-Y plane according to the equation
 
r = (i + 2j)A•cosωt
 
Find the amplitude of the motion of the particle.

Grade:11

1 Answers

Shivansh
askIITians Faculty 267 Points
2 years ago
Amplitude will be sqrt(5)*A

that is because magnitude of i+2j is sqrt(5)

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