Question

Two balls projected at 60° and 30° with vertical and with same initial velocities. The ratio D) Un predictable of their times of flight is: A) 1:2 B) 1:4 C) 1:3 D) 1:under root 3​

Answer 1

Answer:

D) 1/√3

Explanation:

h1 = H2

u1^2.sin^2 60 = u2^2.sin^2 30

2g. 2g

u1 = sin30

U2. sin60