Question

please explain #15 throughly. detailed.

i got it qrong on thw exam? why did I get the B part wrong? was I suppose ro add 90+35?

14. (10 points) A projectile is launched from ground level with an initial speed of 65 m/s at an angle of 55° above the horizontal. It strikes a target in the air 3 seconds later. What are the horizontal and vertical distances from where the projectile was launched to where it hits the target? V-US MIs Vayvsine 5 e= 55 Vry-(PS sin (ss) Vey 53. 24 Vx 2 YYOI Vayl qt Y-OFM 1X (sp (5178)(5) 914 m o1/ 15. (12 points) In the diagram, A has magnitude of 40 m and B has magnitude of 30m. Find the magnitude and direction of resultant vector, R, where A + BR A - 46m B30m 35 A B A coS-gsin&4045-30 sin 35 -sine t Acose-30 sin 35t 40 cos 45 Ax A COSE 45 A 4m Ay40 COS (AS) A2).21 -21. 28 A 1.07 Ay- 405in(45y 50.50 11.67 ByBeosex30 csstas) Phy8ihe 24.57 n. 20 41.77 121-7031 6-to/1.1 zio.45° 50.SU) tan 4 LOF XV

Answer 1