Solve this : 3 A piece of marble is projected from the earth's surface with velocity of 50 - Physics - Current Electricity

Question

Solve this :

3 A piece of marble is projected from the earth's surface with
velocity of 50 ms-1 2 s later, it just clears a wall 5 m
high What is the angle of projection ?
(a) 45o (b) 30o
(c) 60o (d) None of these

Shobhit Mittal · Accepted Answer

Dear Student,u=50 m/s let the angle of projection be θvertical component of the velocity usinθtime taken 2 s and the displacement in y is 5m 5= utsinθ-gt225= 100sinθ-402100sinθ=25sinθ=14θ=sin-14none of theseRegards

Solve this : 3. A piece of marble is projected from the earth's surface with velocity of 50 ms-1. 2 s later, it just clears a wall 5 m high. What is the angle of projection ? (a) 45o (b) 30o (c) 60o (d) None of these

Solve this :

3. A piece of marble is projected from the earth's surface with velocity of 50 ms^-1. 2 s later, it just clears a wall 5 m high. What is the angle of projection ?
(a) 45^o (b) 30^o
(c) 60^o (d) None of these