[单选题]
A jumper in the long-jump goes into the jump wit j66ces knt c/0+gyni3h a speeb m .qpev j as/z0rhbh ssj;8qa(u7278d of 12 m/s at an angle of qqu8r(p .2bhs;j80 m 7jshv zas7bae /$20^{\circ}$ above the horizontal. How far does the jumper jump?
A. $6.14 \; m$
B. $8.22 \; m$
C. $9.45 \; m$
D. $10.4 \; m$
E. $12.28 \; m$
Post time 2025-9-8 22:24:32