Answer:
The constant force exerted on the ball by the wall is 119.68 N.
Step-by-step explanation:
Consider the provided information.
It is given that the mass of the ball is m = 2.2 kg
The initial velocity of the ball towards left is 7.4 m/s
So the momentum of the ball when it strikes is = [tex]2.2\times 7.4=16.28[/tex]
The final velocity of the ball is -6.2 m/s
So the momentum of the ball when it strikes back is = [tex]2.2\times -6.2=-13.64[/tex]
Thus change in moment is: [tex]16.28-(-13.64)=29.92[/tex]
The duration of force exerted on the ball t = 0.25 s
Therefore, the constant force exerted on the ball by the wall is:
[tex]\frac{29.92}{0.25}=119.68[/tex]
Hence, the constant force exerted on the ball by the wall is 119.68 N.
