Question

A person sees an object on a tree of a height 40 m and at a distance of 60 m. With what velocity he should throw a particle at an angle of 45
so that it may hit the object ? Take g = 10 m/s2.

Answer 1

Velocity at 45 degrees = 42.4 M sec^-1

Theta =:45

Let it hit Object at Time T

H = Uy T - 5 T ^2 =40

X = 60= Ux . T = 60

Solution is attached