What is the momentum of a 55 kg object with a velocity of 8.4 m/s?

• 462

• 6.5

• 1940.4

• 4532.2

Tags

NGSS.HS-PS2-2

If you want to change an object's momentum by 200 kg*m/s by applying a force of 15 N, how long do you need to apply the force for?

• 13.3 s

• 3000 s

• .075 s

• 200 s

Tags

NGSS.HS-PS2-1

Object 1 has a mass of 20 kg and an initial velocity of 5 m/s, and object 2 has a mass of 30 kg and an initial velocity of 6 m/s. What is their total momentum?

• 280

• 30

• 180

• 100

Tags

NGSS.HS-PS2-2

While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s, what is the 8 ball's velocity?

• 2 m/s
• 8 m/s
• -2 m/s
• 1.5 m/s

Tags

NGSS.HS-PS2-2

A 23 kg bag of dog food is thrown at a speed of 7 m/s into a stationary shopping cart that weighs 3.5 kg. What is the final velocity of the cart and bag?

• 6.1 m/s

• 7 m/s

• 4.6 m/s

• 3.5 m/s

Tags

NGSS.HS-PS2-2

Marble 1 is sliding down a ramp with a velocity of 4.1 m/s and collides with marble 2 that is sitting at rest. If marble 1 weighs .25 kg and marble 2 weighs .5 kg, what is the final velocity of marble 1?

• -1.37 m/s

• 4.1 m/s

• -2.73 m/s

• 1.2 m/s

Tags

NGSS.HS-PS2-2

Marble 1 is sliding down a ramp with a velocity of 4.1 m/s and collides with marble 2 that is sitting at rest. If marble 1 weighs .25 kg and marble 2 weighs .5 kg, what is the final velocity of marble 2?

• -1.37 m/s

• -4.1 m/s

• 2.73 m/s

• 1.2 m/s

Tags

NGSS.HS-PS2-2

A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two blobs stick together, what will the velocity of the two blobs move at?

• 3.57 m/s

• 3.2 m/s

• 10.0 m/s

• 9.0 m/s

Tags

NGSS.HS-PS2-2

In a physics experiment, two carts of mass 1.5 kg each are rolled towards each other.  The orange cart has a velocity of 2 m/s and the blue cart has a velocity of -1m/s.  The carts stick together when they collide.  Calculate their final speed.

• 0.5 m/s
• 1.0 m/s
• 0.33 m/s
• 0.67 m/s

Tags

NGSS.HS-PS2-2

An 1 kg object moving to the right at 2 m/s collides inelastically with a 1 kg object moving to the left at 2 m/s. The final velocity of both objects will be 

• 0 m/s
• 1 m/s
• 2 m/s
• 4 m/s

Tags

NGSS.HS-PS2-2