A object is moving along with the velocity given below. Calculate the magnitude of the momentum vector .

A blue rubber ball weighing is rolling with a velocity of when it hits a still red rubber ball with a weight of . After this elastic collision, what are the speeds and directions of the blue and red balls respectively?

A bullet weighing is fired at a velocity of at a block weighing at rest on a frictionless surface. When the bullet hits the block, it becomes lodged in the block and causes the block to move. How fast does the block move after the collision?

One car with a mass of 400kg is traveling east at and collides with a car of mass 800kg traveling west at . Assuming the collision is completely inellastic, what is velocity of the first car after the collision?

A popular topic in early space exploration was how to safely return modules back to the surface of the earth. Early designs contained materials that could only withstand impulses of up to before parts of the module became compromised. One such model of mass 500kg is approaching ocean waters and deploys its shoot, reducing its speed to . If the module decelerates to zero velocity in 0.9 seconds upon hitting the water, is the module structurally compromised?

Which of the following explains why when we land on our feet, we instinctively bend our knees? Hint: think about the relationship between force, impulse, and time.

Jennifer has a mass of . She is riding her skateboard east at . She collides with Tommy, who is riding in the opposite direction at . After they collide, they continue in Tommy's direction at . Find the mass of Tommy.

A dump truck is traveling with a large load and a lot of momentum. The truck now travels faster, doubling its velocity. How does the momentum change after the truck doubles its velocity?

Consider the following system:

If the block has a mass of , the angle measures , and there is no friction between the block and slope, what is the momentum of the block after it has traveled a horizontal distance of ?

A man is running at . From that run, he jumps on a resting skateboard of mass of . Assuming no energy lost to friction, determine the final velocity of the man on the board.