[单选题]
A jumper in the long-jump goes t wzf(b7e1tv47 hawc 63mc3ck into the jump withxj0rnu 1l9cdeb;- 5c o a speed of 12 m/s at an angle of lb 9coe5rj ucd0x;1n-$20^{\circ}$ 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