Question

A projectile is projected at an angle alpha( > 45°) with an initial velocity u. The time t, at which its
horizontal velocity will equal the vertical velocity.​

Answer 1

Explanation:

A body thrown some initial velocity and then allow to move under the influence of gravity alone is called projectile

Time of flight: u=usin tetta

a=-g =-9.8

s=o

s= UT+half at square

0=u sin tetta T-half gT square

halfgT square = T u sin tetta

T= 2usin tetta\

g

you have put the value of tetta