The position vector of a particle R as a function of time is given by R=4sin(2πt)i + 4 cos (2πt) j, where R is in meter, t in seconds and i and j denote unit vectors along x and y directions respectively. Which one of the following statements is wrong for the motion of the particle

Options

(a) Magnitude of acceleration vector is v²/R, where v is velocity of particle
(b) Magnitude of the velocity of particle is 8 meter/second
(c) path of the particle is a circle of radius 4 m
(d) Acceleration vector is along R

Correct Answer:

Explanation:

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