Mission Control sends a signal to a Mars robot to travel to a mysterious rock 52.8 meters away. A return signal 59.0 minutes lat
er tells scientists that the robot is at the rock. It took the signal 9.5 minutes to get from Earth to Mars, and the same time to get back. What was the robot’s average speed in meters per minute?
The response time includes the round-trip signal time plus the robot's travel time. 59 min = 2*(9.5 min) +travel time 59 min -2*(9.5 min) = travel time = 40 min
The speed is distance / travel time speed = (52.8 m)/(40 min) = 1.32 m/min
The robot's average speed was 1.32 meters per minute.
