The diagram shows an estimeated force time graph for a baseball struck by a bat

Explanation

Formula (i) Impulse + Area ABC
`=(1)/(2) xx 18000 xx (2.5 -1)`
(ii) force = `("Impulse")/("time ") = (1.35 xx 10^(4))/( (2.5-1))`
`=(13500)/(1.5) =900 N`
(iii) Maximum force = 1800 N