2.2 Calculate the:
2.2.1
Magnitude of the vertical component of the 50 N
2.2.2
Magnitude of the resultant (net) force
2.2.3
Direction of the resultant (net) force​

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 ?

Which branches of natural science include the study of an organism that lived 10 million years ago

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.