Question

6. A projectile is fired from ground level at a speed of 25.0m at an angle of 45° above the horizontal. A very big wall is located at a distance of 40.0 m from the firing point. a) How long does it take the projectile to strike the wall? 25.0 m/s 45° 40.0 m b) At what height does the projectile strike the wall? c) When it struck the wall, was the projectile still going up or was it on the way down? How do you know?

Answer 1

(a) x= ulosat - ? ucosa t = G 40 25 couro = 2.265 (6) 4 = usinat-1 gt² = to 25 (sin45) x 2:26 - 1x38 4= 39.95- 25.02 = 14.92 m. (c) maximum height 4=uksina - 15.94m 2g goes up. So projectile still