The magnitude of the force (in newtons) acting on a body varies with time t (in micro seconds) as shown in the fig AB, BC and CD are straight line segments. The magnitude of the total impulse of the force on the body from `t= 4 mus` to `t=16 mus` is ….Ns

Explanation

Area under the `F-t` graph gives the
impulse imparted to the body.

The magnitude of total impulse of force on the body from
`t=4 mus to t=16 mus`
`=area (BCDFEB)`
`=area of BCDFEB+area CDFC`
`=1/2(200+800)xx2xx10^-6+1/2xx10xx800xx10^-6`
`=0.001+0.004=0.005 Ns`