As a result of an elastic collision between carts 1 and 2, the kinetic energy of cart 1 doubles. part a how does the kinetic energy of cart 2 change, if cart 1 has the initial energy k1,i = 140 j ? express your answer to two significant digits and include the appropriate units. enter positive value if the energy increases and negative value if the energy decreases.

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

It would be c hope this out

Cis the answer  hope this : d