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Compare the collision between two baseballs and a catcher
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.

Which variable is different for these two cases?
(possible answers DELTA V, TIME and MASS

Which Case involves the greatest momentum change?
CASE A, B or BOTH ARE THE SAME

Which Case involves the greatest impulse?

CASE A, B or BOTH ARE THE SAME

Which Case involves the greatest force?

CASE A, B or BOTH ARE THE SAME

Respuesta :

onyebuchinnaji

The change in velocity is different for the two cases.

The case B with a greater force involves the greatest momentum change

Impulse is equal to change in momentum, thus case B will involve the greatest impulse.

The case B involves the greatest force.

 

What is collision?

  • This is the head-on impact between two object moving in opposite or same direction.

The initial momentum of the two ball is the same.

P = mv

where;

  • m is the mass of each
  • v is the initial velocity of each ball

Since the force applied by the arm is different, the final velocity of the balls before stopping will be different.

Thus, the final momentum of each ball will be different and the change in momentum of the rigid arm will be the greatest.

The impulse experienced by each ball is different since impulse is the change in momentum of the balls.

J = ΔP

The force applied by the rigid arm is greater than the force applied by the relaxed arm because the force applied by the rigid arm will cause the ball to be brought to rest faster.

Thus, we can conclude the following;

  • The change in velocity is different for the two cases.
  • The case B with a greater force involves the greatest momentum change.
  • Impulse is equal to change in momentum, thus case B will involve the greatest impulse.
  • The case B involves the greatest force.

Learn more about impulse here: https://brainly.com/question/25700778

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