1.When Ox Tucker and his grandfather Smackie went fishing, Ox accidentally caught his hook on Smackieʼs Darth Vader helmet (mass = 1.20 kg) The helmet wouldnʼt break free so Ox spun it around in circles to try to break it loose. As it circled, the helmet made one revolution every 4.00 seconds and was at a distance of 7.00 meters from him.

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

B) erini just took the test and it is correct