2.1 the velocity of a particle is given by V=
,where V is in meters per second and t is in seconds.
Plot the velocity V and acceleration a versus time for the first 6 seconds of motion and evaluate the velocity when a is zero
2.3 the velocity of a particle which moves along the s-axis is given by V= ,where t is in seconds and V is in meters per second. Evaluate the displacement s,velocity V,and acceleration a when t = 4 s. The parti-cle is at the origin s=0 when t=0.