Changes in Momentum Review

A combination of force and time a object will come to rest or speed up is called?

Build me the Impulse formula:

​ (a)   = ​ (b)   x​ (c)  

• I
• F
• Δt
• Δv
• t
• P

The force of the impact is 500 N, and the crash lasts for 0.2 seconds.

What is the impulse?

Mathematical Equivalence

ON

A hockey player hits a puck with a force of 80 N. The force is applied for 0.5 seconds.

What is the impulse?

Mathematical Equivalence

ON

When changing momentum what two factors effect out dangerous it is?

• Speed

• Force

• Time

• Distance

A fast stop leads to ​ (a)   impulse. While a slow stop leads to a ​ (b)   impulse.

• large
• small

Build me a formula for force:

f = (​ (a)   x​ (b)   )/​ (c)  

• m
• Δv
• t
• a
• v
• P

A 1500 kg truck traveling at 20 m/s crashes into a barrier and comes to a stop in 1.5 seconds. What force did the truck experience?

(Ignore the negative)

Mathematical Equivalence

ON

A 1000 kg car hits a pole while moving at 25 m/s and stops completely in 0.8 seconds. What was the force exerted on the car?

(ignore the negative)

Mathematical Equivalence

ON

A motorcycle with a mass of 1800 kg is moving at 30 m/s. The rider brakes hard to avoid an obstacle, slowing down to 10 m/s in 3 seconds. What is the force applied to the rider? (ignore the negative)

Mathematical Equivalence

ON