Physics E

Which of the following terms describes a Vector and it's proper units?

• position in seconds

• distance in meters

• speed in hours

• velocity in m/s

A car goes from rest to 30 m/s. If it takes the car 40 seconds to reach that speed then what is the car's rate of acceleration?

• 1.33 m/s²

• 0.75 m/s²

• 10 m/s²

• 0 m/s²

A car is traveling south for 250 meters over the course of 100 seconds. What was the car's average velocity?

• 0.4 m/s south

• 0.4 m/s

• 2.5 m/s

• 2.5 m/s south

What is the average velocity of the object between 0 and 10 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

What is the average velocity of the object between 10 and 15 seconds?

• 6 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

What is the average velocity of the object between 15 and 40 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

What is the rate of acceleration of the object between 0 and 4 seconds?

• 1 m/s

• 0 m/s²

• -1 m/s²

• 1 m/s²

What is the velocity of the object between 4 and 5 seconds?

• 0 m/s

• 5 m/s

• 1 m/s

• 2 m/s

Which graph(s) represents a constant velocity?

• a and c

• b and c

• c

• a and b

Horse A is running East at a speed of 6 m/s. Horse B is running at a speed of 8 m/s East as it passes Horse A. What is Horse B's velocity relative to Horse A?

• 14 m/s

• -2 m/s

• 2 m/s

• 48 m/s