A projectile is fired from the ground level with an initial velocity v0. Which of the following statements is true? (A) Vertical component of the velocity at point C is zero
(B) Horizontal component of the velocity at point C is zero
(C) Vertical component of the acceleration at point C is g
(D) Horizontal component of the acceleration at point C is g

Wavelength = pie*69+69 with ur mom

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