If the particle is moving along a straight line given by the relation x=2-3t +4t^3 where s is in cms., and t in sec. Its average velocity during the third sec is

If the particle is moving along a straight line given by the relation

1.	If the particle is moving along a straight line given by the relation x=2-3t +4t^3 where s is in cms., and t in sec. Its average velocity during the third sec is
Answer» 73cm/s 80cm/s 85cm/s 90cm/s Answer :A