Question

paragraph
The
vertical walls separated by a
distance 20om. Aball is projected
horizontally with
to another. Height of projection
ar speed looms from
one
call
is som
from ground. All collisions
between
wall and
boll are elastic Tare
g-tomis
before hitting
Q. Displacement of the ball​

Answer 1

Answer:

Two projectiles are projected simultaneously from the top and bottom of a vertical tower of height h

at angles 45∘

and 60∘

above horizontal respectively.Body strike at the same point on ground at distance 20m

from the foot of the tower after same time.

The speed of projectile projected from the bottom is ;

                                       Answers

                                          _____

40m/s

203–√m/s

403–√m/s

203–√−−−√m/s

Answer :

D

Solution :

R1=(Ucosθ)t=U2–√3–√−−−√

U2–√23–√−−−√=20,U=102–√3–√4UV=12–√

Explanation: