When bunting, a baseball player uses the bat to change both the speed and direction of the baseball. (b) The baseball has a mass of 0.11 kg; its speeds before and after the bunt are 16 m/s and 12 m/s, respectively; and the bunt lasts 0.023 s. What is the change in momentum of the baseball?

Question

When bunting, a baseball player uses the bat to change both the speed and direction of the baseball. (b) The baseball has a mass of 0.11 kg; its speeds before and after the bunt are 16 m/s and 12 m/s, respectively; and the bunt lasts 0.023 s. What is the change in momentum of the baseball? 
What is the average force on the ball by the bat?

bobpursley · Answer

force*time=mass*change of velocity change of velocity considers direction, of course, change of velocity=vf-vi=12-(-16)=28m/s solve for average force.