What Is the Acceleration of a Baseball Hit by a Bat?

[jbjohnybaker]

Homework Statement

A baseball traveling horizontally at 41m/s is hit by a baseball bat, causing its velocity to become 47 m/s [N]. The ball is in contact with the bat for 1.9 ms, and undergoes constant acceleration during this interval. What is that acceleration?

Homework Equations

V2 = v1 + a(delta t)

The Attempt at a Solution

41= 47 + (a)(0.0019) ?? is this right?

 

[lewando]

V1 and V2 look interchanged. You need to consider the proper signs on them as well.