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A particle moves so that its position vector is given by |NEET 2016 #neetpyq #neet #neetphysics
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A particle moves so that its position vector is given by r = cos @t x + sinot ŷ, where w is a constant. Which of the following is true?
[NEET-2016]
(1) Velocity is perpendicular to and acceleration is directed away from the origin
(2) Velocity and acceleration both perpendicular to r are
(3) Velocity and acceleration both are parallel to r
(4) Velocity is perpendicular to r and acceleration is directed towards the origin
Arun Gaur, [6/30/2022 10:08 AM]
The position vector of a particle as a function of time is given by R=4sin(2t)i +4 cos(2t)},
where R is in meters, t is 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 particle?
[Re-AIPMT-2015]
(1) Path of the particle is a circle of radius 4 m
(2) Acceleration vector is along -R
(3) Magnitude of acceleration vector is v is the velocity of particle R where
(4) Magnitude of the velocity of particle is 8 meter/ second
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