Question

1. Find height on wall where ball collide with wall. 2.find angle made by velocity of ball with horizontal at instant of collision. given=speed =50m/s distance =80m and theta =37degree​

Answer 1

Answer:

Solve in the reference frame fixed to the wall.

Before collision, velocity of ball=3v towards it.

∴ After elastic collision of ball=3v away from it.

Time of flight=√2h/g

2h

∴ Distance between wall and ball=3v

g

2h

Answer 2

Explanation:

let's assume given conditions to be right angle triangle

tan37°=3/4

x/80=3/4

x=60m

h=60m

the angel made by velocity with horizontal at instant of collision=45°