[单选题]
A jumper in the longnp5: be0rx5h0 , 5zkroxqme4 i-jump goes into the jump wr5i)p* x 7y v:9:abhq/tatelvith a speed of 12 m/s at an angle th*qv e5t)aibl7p y::av x/r9 of $20^{\circ}$ 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