The instant before a batter hits a 0.14-kilogram baseball, tje velocity of the ball is 45 meters per second west. the instant after the batter hits the ball, the ball's velocity is 35 meters per second east. the bat and ball are in contact for

The magnitude of the  acceleration of the baseball is 8000 m/s² in east direction.

Explanation:

Given that,

Mass of baseball = 0.14 kg

Initial velocity of the ball = 45 m/s

Final velocity = 35 m/s

Suppose The bat and ball are in contact for

We determine the magnitude and direction of the average acceleration of the baseball while it is in contact with the bat

We need to calculate the magnitude and direction of average acceleration of the baseball

Using force of impulse

Impulse :

Impulse is equal to the product of the force and time.

...(I)

Impulse is equal to the change in momentum.

...(II)

Using equation (I) and (II)

Put the value into the formula

Hence, The magnitude of the  acceleration of the baseball is 8000 m/s² in east direction.