A car traveling at constant speed of 25 m/s overtakes an 1100 long train traveling in the same direction on a track parallel to the road at a constant speed of 20 m/s. A) What distance does the car drive as it goes from the back of the train to the front of the train?

B) Same problem, but the car and train travel opposite directions. What distance does the car drive as it goes from the front of the train to the back of the train?

Arock is dropped from a cliff and reaches the ground in 2.70s. at the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second rock cover?

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?

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.