1-D motion Quiz

The position as a function of time for two objects moving along a straight line is shown in the graph. Which statement is true about the distances the two object have traveled at time tf?

• Object 1 has travelled a greater distance

• Object 2 has travelled a greater distance

• Both objects have traveled the same distance.

• The total distance traveled by each object cannot be compared using the graph.

The position as a function of time for two objects moving along a straight line is shown in the graph. At which of the following times do the two objects have the same velocity?

A plane flies the distance between two cities in 1 hour and 30 minutes with a velocity of 900 km/h. Another plane covers that distance with 600km/h. What is the flight time of the second plane?

• 1.45 hrs

• 4.56 hrs

• 3.45 hrs

• 2.25 hrs

• v = -6 m/s, s = 6 m/s

• v = -6 m/s, s = -6 m/s

• v = 6 m/s, s = 6 m/s

• v = 6 m/s, s = -6 m/s

A car travels along the x-axis for 4 s at an average velocity 10 m/s and 2 s with an average velocity 30 m/s and finally 4 s with an average velocity 25 m/s. What is its average velocity across the whole path?

• 15 m/s

• 10 m/s

• 30 m/s

• 20 m/s