Momentum/Impulse 4/4/23

what is the momentum of a 50kg carton that slides at 4m/s across an icy surface?

• 20m/s

• 200m/s

• 200kg/s

• 25m/s

Joe is trying to tackle Carson while Carson is standing still. Joe is running at 15 m/s and has a mass of 32 kg. Carson has a mass of 64 kg. What is their final velocity, assuming this is a perfectly inelastic collision? (do not write units)

• 5

• 10

• 5.5

• 12.4

A dart with a mass of 0.5kg is thrown at 15m/s and sticks into a 1kg apple hanging on a string.  What is the velocity of the dart and apple just after the dart is embedded? 

• 0 m/s

• 5 m/s

• 10 m/s

• 15 m/s

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

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s

• 375 m/s

• 25 kg m/s

• 375 kg m/s

A constant force of 4.5 N acts on a 7.2-kg object for 10.0 s. What is the change in the object's momentum?

• 45 kg m/s

• 72 kg m/s

• 32.4 kg m/s

• 0.45 kg m/s

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision.  What is the velocity of the second ball after the collision? 

• 5 m/s

• 2.5 m/s

• 10 m/s

• 7.5 m/s

A 10kg ball moving at 13 m/s strikes a 20kg ball at rest. After the collision the 10kg ball is moving with a velocity of 7 m/s. What is the velocity of the second ball?

• 3 m/s

• 12 m/s

• 6 m/s

• 4 m/s

A 3,000 kg truck moving at +10 m/s hits a 1,000 kg parked car which moves off at +15 m/s. What is the velocity of the truck?

• 10 m/s

• 0 m/s

• 5 m/s

• 2 m/s

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