Mastering Physics Solutions: Momentum in an Explosion

Mastering Physics Solutions: Momentum in an Explosion

On March 1, 2014, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = 0
Part B = equal to
Part C = 500 kg·m/s

What is the momentum PA,i of piece A before the explosion?
During the explosion, is the force of piece A on piece B greater than, less than, or equal to the force of piece B on piece A?
The momentum of piece B is measured to be 500 kg·m/s after the explosion. Find the momentum PA,f of piece A after the explosion.

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Mastering Physics Solutions: Catching a Ball on Ice

Mastering Physics Solutions: Catching a Ball on Ice

On October 23, 2013, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = 6.72 cm/s
Part B = 11.0 cm/s

If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward?
If the ball hits Olaf and bounces off his chest horizontally at 7.40 m/s in the opposite direction, what is his speed after the collision?

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Mastering Physics Solutions: A Ball Hits a Wall Elastically

Mastering Physics Solutions: A Ball Hits a Wall Elastically

On October 23, 2013, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = θf = θi
Part B = F = 2mvisin(θf)/(Δt)

What is the final angle θf that the ball’s velocity vector makes with the negative y axis?
What is the magnitude F of the average force exerted on the ball?

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Mastering Physics Solutions: A Bullet Is Fired into a Wooden Block

Mastering Physics Solutions: A Bullet Is Fired into a Wooden Block

On September 28, 2013, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = perfectly inelastic
Part B = momentum only
Part C = vf = mb ˙ vi / (mb + mw)

Which of the following best describes this collision?
Which of the following quantities, if any, are conserved during this collision?
What is the speed of the block/bullet system after the collision?

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Mastering Physics Solutions: Question 6.12

Mastering Physics Solutions: Question 6.12

On January 5, 2012, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = +2mv

A rubber ball of mass m traveling horizontally with a speed v hits a wall and bounces back with the same speed. The change in momentum is

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Mastering Physics Solutions: Question 6.10

Mastering Physics Solutions: Question 6.10

On January 5, 2012, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = they cancel each other.

Internal forces do not affect the conservation of momentum because

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