Review

•       Velocity = Distance/time                                                     (v=d/t)

•       Acceleration = change in velocity/time of change              (a=dv/dt)

•       Force = (mass)*(acceleration)                                            (f=ma)

_–     Force_weight = (mass)* (gravitational acceleration)          (f_w=mg)

–    Normal force= (Force_weight)*(cos (angle of slope))       (f_n=f_wcosq)

–    Shear force = (Force_weight)*(sin (angle of slope))         (f_s=f_wsinq)

 

•      A vehicle is traveling 120731m in 3800 sec.  What is the velocity?

•      This vehicle accelerates from 18m/s to 32m/s in 4 sec. what is the acceleration?

•      This vehicle has a mass of 750kg, how much force was required to accelerate it?

•      What is the weight of this vehicle?