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Compare the collision between two baseballs and a catcher's mitt.
Case A: A baseball pitched at 40 m/s collides with a catcher's mitt and is brought
to a stop. The catcher holds the mitt with a relaxed arm and retracts backwards 30
cm as the ball strikes the mitt.
Case B: An identical baseball pitched at 40 m/s collides with a catcher's mitt and
is brought to a stop. The catcher holds the mitt rather rigidly and retracts
backwards very little as the ball strikes the mitt.
Case A
Before
After
Case B
Before
Which variable is different for these two cases?
Which Case involves the greatest momentum change?
Which Case involves the greatest impulse?
Which Case involves the greatest force?
After