Boat A is stationary relative to the still water of a lake . Let the water surface be the xy plane . Boat B is moving at a constant speed of 3 m / s along the x - axis , relative to the water . According to an observer on A , a fish F has an acceleration of 7 m/s^ ^ 2a along the positive y axis . Which of the following vectors gives the acceleration of F as seen by an observer on B (inm / (s ^ 2)) ?

If Vector A is 50cm, Vector B is 30cm and Vector C is 20cm, then how would a graphical representation for total vector T look like?

Dr. L. and his cat Kepler are coming home from fishing. They ended their trip on the southbank of a 1200 m wide river, directly across from where Caroline is waiting to pick them upon the north bank. They are in identical boats that travel at 4 m/s (VB) on still water. Theriver is normally ‘lazy’ and flows with negligible velocity. On a calm day, if they pointed theboats north, they would cross the river in exactly 300s. However, today, the river is flowingdue east with a constant velocity (VW) of 1 m/s relative to the ground. Kepler, because shedoesn’t know better (she is a cat after all), has not taken this into account. Without payingattention, Kepler keeps the boat pointed due north for the entire trip. A) Relative to the ground, what is Kepler’s velocity? Derive an algebraic solution(in terms of VB and VW only) and then give a numerical answer (three significant figures isfine) expressed in degrees relative to due north (e.g. ‘42.3° west of north’).