A jogger runs with a speed of 3.25 m/s in a direction 30.0° above the x axis. (a) Find the x and y components of the jogger's velocity. (b) How will the velocity components found in part (a) change if the jogger's speed is halved? (c) Calculate the components of the velocity for the case where the jogger's speed is halved.

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

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