Abaseball is traveling (+30 m/s) and is hit by a bat. it leaves the bat traveling (-40 m/s). what is the change in the velocity? remember that direction is what makes velocity different than speed.

Explanation:

Change in velocity can be calculated by subtracting initial velocity from final velocity. The expression for the same is as follows.

where,     = change in velocity

                = final velocity

                = initial velocity

It is given that initial velocity is +30 m/s and final velocity is -40 m/s. Thus, calculate the change in velocity as follows.

                        = -40 m/s - (+30 m/s)

                        = (-40 - 30) m/s

                        = -70 m/s

Therefore, the change in the velocity -70 m/s.

answer is c

explanation:

ill do it for 100, also this isnt 80 its 40