What is the magnitude of the resultant of a 3.0 meter displacement and a 4.0 meter displacement as shown in the diagram?

• 1.0 meters

• 5.0 meters

• 7.0 meters

• 12 meters

Base your answer(s) to the following question(s) on the graph, which represents the relationship between the displacement of an object and its time of travel along a straight line.

What is the magnitude of the object's total displacement after 8.0 seconds?

• 0 m

• 2 m

• 8 m

• 16 m

A group of bike riders took a 4.0 hour trip. During the first 3.0 hours, they traveled a total of 50 Km, but during the last hour they traveled only 10 Km. What was the group's average speed for the entire trip?

• 15 km/hr

• 30 km/hr

• 40 km/hr

• 60 km/hr

A runner starts from rest and accelerates uniformly to a speed of 8.0 m/s in 4.0 seconds. The magnitude of the acceleration of the runner is:

• 0.50 m/s²

• 2.0 m/s²

• 9.8 m/s²

• 32 m/s²

Tags

NGSS.HS-PS2-1

The accompanying diagram represents the relationship between velocity and time of travel for four cars, A, B, C, and D, in a straight-line motion.

Which car has the greatest acceleration during the time interval 10 to 15 seconds?

• A

• B

• C

• D

A car having an initial speed of 16 meters per second is uniformly brought to rest in 4.0 seconds. How far does the car travel during this 4.0 second interval?

• 32 m

• 82 m

• 96 m

• 4.0 m

The graph represents the relationship between distance and time for an object. What is the instantaneous speed of the object at t = 5.0 seconds?

• 0 m/s

• 2.0 m/s

• 5.0 m/s

• 4.0 m/s

A cart starting from rest travels a distance of 3.6 meters in 1.8 seconds. The average speed of the cart is

• 0.20 m/s

• 2.0 m/s

• 0.50 m/s

• 5.0 m/s

A blinking light of constant period is situated on a lab cart. Which diagram best represents a photograph of the light as the cart moves with constant velocity?

• A

• B

• C

• D

How long will it take an object to move 100 meters if the object is traveling with an average speed of 0.5 m/s?

• 200 seconds

• 2 seconds

• 5 seconds

• 50 seconds