A projectile is fired with a velocity u from an inclined angle of beta. The projectile makes an angle of alpha with the horizontal. (i) If (usin(a) — ½gt) cos(ß) = usin(ß)cos (a) show that t = 2usin(a-B)sec (B) g where g is acceleration due to gravity and t is time of flight. u² (ii) where R is the range of If gR = u²sec² (ß)[1 – sin (ß)], show that R = the projectile. g[1+sin(B)]
A projectile is fired with a velocity u from an inclined angle of beta. The projectile makes an angle of alpha with the horizontal. (i) If (usin(a) — ½gt) cos(ß) = usin(ß)cos (a) show that t = 2usin(a-B)sec (B) g where g is acceleration due to gravity and t is time of flight. u² (ii) where R is the range of If gR = u²sec² (ß)[1 – sin (ß)], show that R = the projectile. g[1+sin(B)]
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