momentum impulse and collisions

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

• 25 m/s

• 375 m/s

• 25 kg m/s

• 375 kg m/s

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

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

Tags

NGSS.HS-PS2-2

The units for Impulse are

• N/s

• N·s

• N

• m/s

Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds.  Which cart experiences the greatest impulse?

• Cart B
• Cart A
• they are the same

A boy kicks a football. It experiences an impulse of +60 N s. The time the force acts on the ball for is 0.3 s.

Calculate the force on the ball.

• +18 N

• -18 N

• +200 N

• -200 N

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N·s.

• -2.5

• -10

• -18

• -45

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2

_________________ causes and is equal to a change in momentum

• Impulse

• Force

• Joule

• Watt

Tags

NGSS.HS-PS2-2

Determine the momentum of a 1,000-kg car moving northward at 20 m/s.

• 20,000 N

• 20,000 Joules

• 20,000 Kg * m/s

• 20,000 kg * m/s north

If two objects have the same mass, then the faster moving object has ____________ momentum.

• more 
• less
• the same

Tags

NGSS.HS-PS2-2