JEE Main 2009Annual, Paper 1PhysicsEasyKinematics177× since 2002A particle has an initial velocity 3i^+4j^3\widehat i + 4\widehat j3i+4j and an acceleration of 0.4i^+0.3j^0.4\widehat i + 0.3\widehat j0.4i+0.3j. Its speed after 10 s is:AOption A. 727\sqrt 272 unitsBOption B. 7 unitsCOption C. 8.5 unitsDOption D. 10 unitsCheckSkip · show solution