PLEASE HELPPP Ball A of mass 5.0 kg moves at a speed of 4 m/s. It collides with a second stationary ball B, also
of mass 5.0 kg. After the collision, ball A moves off in the direction 45 degrees to the left of its
original direction. Ball B moves off in the direction 45 degrees to the right of ball A's original
direction.
a. Draw a vector diagram to determine the momentum of ball A and ball B after the collision.
b. What is the speed of each ball after the collision?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?