Question: A projectile is thrown in the upward direction making an angle of 60° with the horizontal direction with a velocity of 147 𝑚𝑠 −1 . Then the time after which its inclination with the horizontal is 45°, is
(A) 15 𝑠
(B 10.98 𝑠
(C) 5.49 𝑠
(D) 2.745 𝑠
Answer: option (C)
Solution:
