How we worked it out
Updated as you change the numbers.
- p = m × v. Impulse J = m(v₂ − v₁) = F̄ × Δt.
Method and assumptions
Signs give direction: a ball reversing direction has a large change in momentum.
Questions
What average force does a bat apply to a 145 g baseball turned from 40 to −45 m/s in 0.7 ms?
About 17,607 N.
Sources
Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.