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A 9-kg cart is moving forward at 7 m/s on a frictionless surface. Then you apply a 19-N forward force on it for 6 seconds

A 9-kg cart is moving forward at 7 m/s on a frictionless surface. Then you apply a 19-N forward force on it for 6 seconds in the same direction. Use impulse-momentum considerations to calculate the final speed of the car

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