7 A projectile is projected with a speed u making an angle

Last updated: 6/26/2023

7 A projectile is projected with a speed u making an angle 20 with the horizontal What is the speed when its direction of motion makes an angle 0 with the horizontal u cos 20 2 1 2 u 2 cos 0 sec 0 3 u cos 0 4 u cos 0 sec 0 A particle reaches its heghest point when it has