a baseball is traveling (+30 m/s) and is hit by a bat. it leaves the bat traveling (-40 m/s). what is the…

a baseball 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. -10 m/s -30 m/s -40 m/s -70 m/s

a baseball 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. -10 m/s -30 m/s -40 m/s -70 m/s

Answer

Explanation:

Step1: Recall the formula for change in velocity

The formula for change in velocity (\Delta v) is (\Delta v = v_f - v_i), where (v_f) is the final velocity and (v_i) is the initial velocity.

Step2: Substitute the given values

Given (v_i=+ 30\space m/s) and (v_f=-40\space m/s). Then (\Delta v=-40-(+30)).

Step3: Perform the arithmetic operation

(\Delta v=-40 - 30=-70\space m/s)

Answer:

(-70\space m/s)