I NEED HELP PLEASE, THANKS! :) A baseball player running forward at 3 meters per second throws a ball with a velocity of 20 meters per second at an angle of 20o with the horizontal. What is the resultant speed and direction of the throw? (Show work)

  22.8 m/s at 17.4°

Step-by-step explanation:

You want to find the resultant of ...

  3 cis 0° +20 cis 20° = (3, 0) +(18.794, 6.840) = (21.794, 6.840)

The magnitude is the root of the sum of the squares of the velocities in the horizontal and vertical directions:

  s = √(21.794² +6.840²) ≈ 22.8

The direction is found from the fact that the tangent of the angle is the ratio of vertical to horizontal coordinates:

  angle = arctan(6.840/21.794) ≈ 17.4°

The resultant velocity is 22.8∠17.4° meters per second.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.