Collisions Pop

1.A car has a momentum of 40,000 kgm/s. If the velocity of the car is doubled, what would be the new momentum of the car?

• 40,000 kgm/s
• 60,000 kgm/s
• 80,000 kgm/s
• 20,000 kgm/s

Which of the following objects has the greatest momentum?

• A 1 kg object moving at 200 m/s

• A 10 kg object moving at 30 m/s

• A 20 kg object moving at 20 m/s

• A 100 kg object moving at 2 m/s

Compared to the inertia of a 1 kg mass, the inertia of a 4 kg mass is

• 1/4 as great

• 1/16 as great

• 16 times as great

• 4 times as great

When these two freight cars of different mass collide and couple, what will be their resultant velocity?

• 1 m/s

• 2 m/s

• 4 m/s

• 8 m/s

What is the mass of the second box?

• 4 kg

• 6 kg

• 8 kg

• 9 kg