Question

The Students in Carli's class built some solar-powered robots which they raced in the cafeteria of the school. After the Race,Carli drew the graphs shown below to represent the distance d,in meters, that each of three robots A,B and C traveled After t second. which of the following statements about Robot B are true? (Select all that Apply)Robot A 1,5Robot B 5,7.5Robot C 5,2Robot B Traveled in a different Direction than the other two RobotsRobot B Traveled 5 meters in 7.5 seconds Robot B Traveled 7.5 meters in 5 seconds Robot B Traveled 2/3 Meters per secondRobot B Traveled 3/2 meters per Second.None of these are true.

Answer 1

We aree asked to study the following graph that depicts the motion of the three robots:

The three robots apparently travelled in the same direction (all in the positive direction, so the first statement is FALSE.

Robot B traveled 7.5 meters in 5 seconds as indicated by the pair (5, 7.5) on its line, which gives first the value of the horizontal coordinate (the TIME), and in second place the distance traveled) so the THIRD statement is CORRECT

Notice that robot B covered 7.5 meters in 5 seconds, and such quotient gives the rate at which it moved: 7.5/5 = 1.5 meters per second. (which is equivalent to 3/2 meters per second , therefore the fifth statement is TRUE.

Only THIRD and FIFTH statements are TRUE.