Question

projectile is launched with a velocity of 30 ms. The ratio of the velocity of projectile at the highest
point to its launch velocity is -
Calculate the angle at which the projectile was launched.
(b) 45°
(c) 60°
(a) 30°
(d) 90°​

Answer 1

Answer:

(b)45° is the write answer I think

Answer 2

Answer:

45

Explanation:

the ratio of speed of the projectile at the highest point to launch is = cos∅

cos∅ = 1 /√2

     ∅ = 45 degree