Question

Matt is sailboarding northeast Across the river with the velocity of 10 m/s relative to the water the river current is moving the water north at the velocity of three m/s down stream if the angle between the relative velocity of the sailboard in the river current is 30° what is the resultant or true velocity of the sailboard?

and the river current is 30 e relative velocity of the sailboard and the of the sailboard? lacity 3 m/s (velocity of river current) a 100 m dash. When the starter's pistol fires, he leavesthes gup unt 6s into the race, when he reaches his top speeddl then his speed has slowed to 10 m/s by the time he crosss race. n's average acceleration during the first 6 s of the m

Answer 1

(boat velocity relative to water) Now resultant y - component of velocity of boat = (3j + 10 cos 30 j) m/s = (3 + 5 squareroot 3)j m/s = 11.660 j m/s Now resultant x - component of velocity of boat = 10 sin 30 degree i m/s = 5 i m/s Resultant true velocity = (5i + 11.660 j) m/s