{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

The change in the momentum of the parcle is equal to

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: impulse of the net force ∑ F ac6ng on a par6cle over the 6me interval Δt = tf –ti and is denote by I : I= tf Fdt .............(2 ) ∫∑ ti Direc6on of impulse is same as direc6on of the change in momentum It is clear that if we plot ∑ F vs t, the area under the curve and between ti and tf gives the magnitude of I . From equa6on (1) and (2), we obtain the impulse ­momentum theorem. The change in the momentum of the par;cle is equal to the impulse of the net force ac;ng on the par;cle: Δp = I In many physical situa6ons, the impulse real impulse is approximated by assuming that one of the forces exerted on a par6cle acts for a short 6me but with much greater than any other force present. This is called impulse approxima;on. Example A tennis player hits a ball (60 g) during a tennis match. The ball changes ini;ally from re...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online