SOLUTION: A grasshopper jumps straight up with a intial velcoity of 14m/s a) what will be the velocity of the grasshopper 1.0 second afer it left the ground b) at what time will the grasho

If forget/neglect the air resistance and consider the events in vacuum,
   where only gravitation does matter, then


    (a)  v =  - g*t = 14 - 10*1 = 4 m/s

                              (here g is the free fall acceleration 9.81 m/s ~ 10 m/s).



    (b)  t =  =  = 1.4 seconds.