1· The diagram shovsthe top view of tree moboboats crossing anver (left bank tor

Question

1· The diagram shovsthe top view of tree moboboats crossing anver (left bank tori ht bank. All three move at the same speed of 5.0 msbtin different directions, and all experience the same rent at 2.5 ms flowing down the river i) Sketch the vectors representing the resultant velocity for the three motorboats on the figure to the right. 30 ii)Using the simlation, find the magnitude of the resultant velocity (ie the resultant speed) for each of the three Resultant speed ofmotor boat a Resultant speed of motorboatb- Resultant speed ofmotorboat c = 3001 ii) Calculate the rsitantspeed for eachof the three motorboats, and compare with your answers in part ii. Show your work clearly. iv) Which motorboatwill travel the fastest to reach the other side of the riverExplain v) Which motorboatwill take the shortest time to reach the other side of the river? Explain vi)Which motorboat will travel the shortest distance to reach the other side of the iver? Explain. 30 3001

Explanation / Answer

speed of a = 5cos30 i + (5sin30- 2.5)j = 4.33i

speed of b = 5i + 2.5j

speed of c = 5cos30 i -(5sin30 - 2.5)j = 4.33i+5j

so motorboat c wil travel the fastest as the magnitude of it is highest

motorboat b will take shortest time as it travels horizontally

motorboat a will travel shortest distance as it's resultant will be horizontal..

explained in details

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