Question If a and b are positive constants, then x a cos(H), y = a sin(bt) descr

Question

Question If a and b are positive constants, then x a cos(H), y = a sin(bt) describes the motion of a particle orbiting counterclockwise about the origin. Which transformation of the motion is not correctly identified? A. If a is doubled, then the radius of the orbit is doubled B. If b is doubled, the time to complete one orbit is doubled C. If the sign of a is changed, then the particle orbits clockwise D. If the sign of b is changed, then the particle orbits clockwise. E. More than one of the above is incorrect.

Explanation / Answer

The answer here is E, here both the statements B and C are wrong

since when b is doubled he time to complete one orbit is halved and if sign of a is changed still the orbit is same circle.

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