Question

if the particle is moving along a straight line given by the relation x=2-3t+4tcube where s is in cms and t is in sec it's average velocity during third sec is

Answer 1

Answer:

Displacement of particle is given by:

x=2−3t+4t

3

Velocity, v=

dt

dx

=−3+12t

2

At t = 3 s

v=−3+12×9

v=105cm/s.

i hope it's help to you