Jack and Jill are maneuvering a 3400 kg boat near a dock. Initially the boat's position is < 2, 0, 3 > m and its speed is 1.0 m/s. As the boat moves to position < 4, 0, 2 > m, Jack exerts a force of < -400, 0, 200 > N, and Jill exerts a force of < 160, 0, 320 > N.
How much work does Jack do?
WJack = J
How much work does Jill do?
WJill = J
Which person exerted a force perpendicular to the displacement of the boat?
neither Jack nor Jill
Jill
both Jack and Jill
Jack
What is the final speed of the boat?
vf = m/s