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Q. While a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude F=ax+bx^2, where a and b are constants. The work completed in stretching this rubber band from x=0 to x=L is what?

Q. A 2.00 kg softball is pitched to you at 20m/s and you hit the ball back along the similar path but at twice the speed. If the bat was in contact with ball for 0.1 second, what was the average force exerted on the ball?

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Category:- Physics
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