A 12.0 kg ball is placed on a catapult. When the catapult releases it applies a pressure of 1598 N, what is the acceleration of the ball as it moves through the air?

The best description is: . nobody has any idea what q is.

I'm pretty sure the answer is c 

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

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