Calculating Speed of Ball After Racket Strike

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To calculate the speed of the ball after being struck by the racket, the impulse can be determined by finding the area under the force versus time graph. The impulse is equal to the force multiplied by the contact time, which affects the change in momentum of the ball. Using the formula for impulse, I = FΔt, and relating it to the change in velocity, the final speed can be calculated. The mass of the ball is 116 g, and the initial speed is 34 m/s to the left. The solution involves applying these principles to derive the final speed after the racket strike.
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Homework Statement


A 116 g ball is traveling to the left with a speed of 34 m/s when it is struck by a racket. The force on the ball, directed to the right and applied over 21 ms of contact time, is shown in the graph. What is the speed of the ball immediately after it leaves the racket?

this graph comes with it
http://www.webassign.net/grr/p7-16.gif


Homework Equations


I know it has something to do with impluse so I = F x T


The Attempt at a Solution


i have no idea!
 
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try F\Delta t = m\Delta v

area under the graph = impulse, divide by mass = velocity
 
Yes, that formula is needed since I=\Delta \rho where \Delta \rho=change in momentum.
All you need to do to find the impulse is calculate the area under the graph.
 
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