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Sagot :
The average force the bat exerts on the ball when it touches it for the given period of time is 975 N.
The given parameters:
- mass of the ball, m₁ = 65 g
- initial velocity of the ball, v₁ = 25 m/s
- final velocity of the ball, v₂ = 35 m/s opposite direction
- time of action, t = 4 ms
The average force the bat exerts on the ball when it touches it for the given period of time is calculated by applying Newton's second law as follows;
[tex]F = ma\\\\F = \frac{M(v_2 - v_1)}{t} \\\\F = \frac{0.065(35 - (-25))}{4 \times 10^{-3}} \\\\F = \frac{0.065(35 + 25)}{4 \times 10^{-3}} \\\\F = 975 \ N[/tex]
Thus, the average force the bat exerts on the ball when it touches it for the given period of time is 975 N.
Learn more about Newton's second law here: https://brainly.com/question/19887955
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