Sbhi ne Black pfp Kyu Lgai Hai...​

What is the length x of the side of the triangle below? (hint: use the cosine function)

The force will determine the acceleration.

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?