Q. A canoe has a velocity of 0.350 southeast relative to the earth. The canoe is on a river that is flowing at 0.510 east relative to the earth. Find the magnitude of the velocity of the canoe relative to the river.
Q. two students stand poised to leap off a high dive structure into teh swimming pool below. Student B is twice as massive as student A. Which of the following is true?
a) student B did twice as much work climbing to the top of the structure.
b) both students will have the same kinetic energy before impact.
c) student B will reach teh ground sooner than student A.