Momentum

Determine the momentum of 1000-kg car moving northward at 20 m/s.........

• 0.02 kg * m/s

• 20000 N

• 0.02 N

• 20000 kg * m/s

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction

A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?

• 14.4 kg
• 1400 kg
• 144 kg
• 360 kg

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s
• 1 kg-m/s
• 10 kg-m/s
• 100 kg-m/s

A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?

• 8 m/s
• 32 m/s
• 0.125 m/s
• 18 m/s

A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?

• 74.4 kg
• 6030 kg
• 0.0134 kg
• 80 kg

What are the units of Force?

• kg m/sec
• kg m
• N
• N sec

Which of the following is NOT a unit of momentum?

• kg*m/s

• N*s

• kg*mph

• kg*m/s²

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 

• 55 kg*m/s
• 100 kg*m/s
• 250 kg*m/s
• 500 kg*m/s