4. Momentum

Linear Momentum — Quiz

Test your understanding of linear momentum with 5 practice questions.

Practice Questions

Question 1

Two objects, one of mass 5 kg and the other of mass 3 kg, are moving towards each other. The 5 kg object is moving at 4 m/s east and the 3 kg object is moving at 6 m/s west. What is the total linear momentum of the system?

Question 2

A 2 kg object moving at 5 m/s collides elastically with a 3 kg object moving at -4 m/s. After the collision, the 2 kg object moves at -1 m/s. What is the velocity of the 3 kg object after the collision?

Question 3

A 4 kg object is moving at 8 m/s. A 2 kg object is moving at -6 m/s. They collide and stick together. What is the final velocity of the combined mass after the collision?

Question 4

A 3 kg object is moving at 5 m/s. A 4 N force acts in the opposite direction of motion for 3 seconds. What is the final velocity of the object?

Question 5

An object of mass 5 kg is moving at 6 m/s. A 3 N force acts in the direction of motion for 4 seconds. What is the object's final velocity?