A 4-kg object, which is moving on a smooth horizontal surface with a velocity of 10 m/s in the−x-direction, is subjected to a force F_x which varies with time as shown. Approximate the experimental data by the dashed line and determine the velocity of the object 

(a) At t = 0.6 s 

(b) At t = 0.9 s.

Transcribed Image Text:

F, N 240 -t, s 0.2 0.6 0.9 -120