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Q. A worker drops a wrench from the top of a tower 86.0 m tall. With what velocity does the wrench strike the ground? (Assume the positive direction is upward.)

Q. A boat has a mass of 6700 kg. Its engines generate a drive force of 4169 N due west, while the wind exerts a force of 771 N due east and the water exerts a resistive force of 1196 N due east. What is the magnitude and direction of the boat's acceleration? Enter a positive answer for a direction due west, or a negative answer for a direction due east.

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