A force in the negative direction of an x axis is applied for 32 ms to a 0.57 kg ball initially moving at 23 m/s in the positive direction of the axis. The force varies in magnitude, and the impulse has magnitude 46.0 N s. (a) What is the ball's velocity (including sign for direction) just after the force is applied? (b) What is the average magnitude of the force on the ball?

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