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9.1 Impulse and Momentum PHYSICS 1 1 January 17, 2019 UNIT 9 Impulse and Momentum LEARNING TARGET DESCRIPTION 9.1 I can define, analyze, and solve problems involving impulse and linear momentum. A car is cruising down Grand Avenue toward you, at a speed of 16 m/s (~35 mph). Can you stop it by standing in front of it and holding out your hand? Impulse and Momentum What is momentum? Headlines "The Broncs are gaining momentum as they head to the state tournament." p= m v Momentum Momentum is mass in motion! Momentum is equal to the mass of an object times the object's velocity.

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Page 1: What is momentum?broncphysics.weebly.com/uploads/2/3/3/4/23345212/9... · 9.1 Impulse and Momentum PHYSICS 1 1 January 17, 2019 UNIT 9 Impulse and Momentum LEARNING TARGET DESCRIPTION

9.1 Impulse and Momentum

PHYSICS 1 1

January 17, 2019

UNIT 9

Impulse and MomentumLEARNING TARGET DESCRIPTION

9.1I can define, analyze, and solve problems involving impulse and linear momentum.

A car is cruising down Grand Avenue toward you, at a speed of 16 m/s (~35 mph). 

Can you stop it by standing in front of it and holding out your hand? 

Impulse and Momentum

What ismomentum?

Headlines

"The Broncs are gaining momentum as they head to the state tournament."

p = m v

MomentumMomentum is mass in motion!

Momentum is equal to the mass of an object times the object's velocity.

Page 2: What is momentum?broncphysics.weebly.com/uploads/2/3/3/4/23345212/9... · 9.1 Impulse and Momentum PHYSICS 1 1 January 17, 2019 UNIT 9 Impulse and Momentum LEARNING TARGET DESCRIPTION

9.1 Impulse and Momentum

PHYSICS 1 2

January 17, 2019

MomentumVector or Scalar?

Units?

Relationship?

p = m vChanging Momentum

Changing Momentum

Impulse = Δp = pf ­ pi

Change inMomentumImpulse =

Impulse­Momentum Theorem

F = m a

Impulse­Momentum Theorem

F Δt = pf ­ pi

Bear and Bouncy Ball

Page 3: What is momentum?broncphysics.weebly.com/uploads/2/3/3/4/23345212/9... · 9.1 Impulse and Momentum PHYSICS 1 1 January 17, 2019 UNIT 9 Impulse and Momentum LEARNING TARGET DESCRIPTION

9.1 Impulse and Momentum

PHYSICS 1 3

January 17, 2019

IN CLASS PROBLEMSCalculate the momentum of the following objects: 

1. 110­kg football player running at 8.00 m/s.2. How fast would you need to throw a 0.410­kg football so that    

it has the same momentum as the football player?

3. A hockey puck has a mass of 0.115 kg and strikes the pole of    the net at 37 m/s. It bounces off in the opposite direction at 25 m/s.a) What is the impulse on the puck?b) If the collision takes 5.0 x 10­4 s, what is the average force on      

the puck? 

Calculate the momentum of the following objects: 

1. 110­kg football player running at 8.00 m/s.

2. How fast would you need to throw a 0.410­kg football so that    it has the same momentum as the football player?

IN CLASS PROBLEMS

A hockey puck has a mass of 0.115 kg and strikes the pole of the net at 37 m/s. It bounces off in the opposite direction at 25 m/s.

a) What is the impulse on the puck?

b) If the collision takes 5.0 x 10­4 s, what   is the average force on the puck? 

IN CLASS PROBLEMS

PRACTICE PROBLEMS (1­4)