Apassenger walks from one side of a ferry to the other as it approaches a dock. passenger's velocity is 1.55 m/s due north relative to the ferry, and 4.50 m/s at an angle of 30.0° west of north relative to the water. (a)what is the magnitude of the ferry's velocity relative to the water? (b) what is the direction of the ferry's velocity relative to the water?

Explanation:

Given

Velocity of Passenger w.r.t to Ferry

-------1

Velocity of Passenger w.r.t to water

--------2

Subtract 2 from 1

(b)direction

North of west

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weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards