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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 3 - Motion in a Plane > The position of a particle is given by r = 3.0 t i ^ − 2.0 t^2 j^ + 4.0 k^m where t is in seconds and the coefficients have the proper units for r to be in metres (a) Find the v and a of the particle? (b) What is the magnitude and direction of velocity of the particle at t = 2.0 s ?

The position of a particle is given by r = 3.0 t i ^ − 2.0 t^2 j^ + 4.0 k^m where t is in seconds and the coefficients have the proper units for r to be in metres (a) Find the v and a of the particle? (b) What is the magnitude and direction of velocity of the particle at t = 2.0 s ?

a motorist follows a track that turns to his left by an angle of 60° after every 500 m. Starting from a given turn On an open ground sixth and eighth turn. Compare the magnitude of the displacement with the total path length covered by the motorist in each case. specify the displacement of the motorist at the third