Correct Answer: D
Explanation:
At one instant, two meteors are 2,500 kilometers apart and traveling toward each other in straight paths along the imaginary line joining them. One meteor has a velocity of 300 meters per second while the other travels at 700 meters per second. Assuming that their velocities are constant and that they continue along the same paths, how many seconds elapse from the first instant to the time of their collision?(1 kilometer = 1000 meters).
As both meteors are moving towards each other, so the net speed = 300 + 700 = 1000 meter per second
Distance = 2500 = 2500 × 1000 = 2500000 meters
Time = = = 2500 seconds