[单选题]
A jumper in the longi t4oq g1l+gumz.*x+n -jumj* m /x5yw s65rq8pgyrp goes into the jump with a speed of 12 m/s at an angle q ry5j8xm5/ryp ws g6*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