The distance from the sun to Earth would be Which phrase best completes the sentence? O exactly one light year O any number of light years more than one light year o less than one light year
Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?