A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 3.00 m above the water. Use energy conservation to find his speed just as he hits the water if he just holds his nose and drops in. Use energy conservation to find his speed just as he hits the water if he bravely jumps straight up (but just beyond the board!) at 2.70 m/s. Use energy conservation to find his speed just as he hits the water if he manages to jump downward at 2.70 m/s.
A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is...
A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 3.55 m above the water. A) Use energy conservation to find his speed just as he hits the water if he just holds his nose and drops in. -> 8.34 m/s B) Use energy conservation to find his speed just as he hits the water if he bravely jumps straight up (but just beyond the board!) at 2.55 m/s C) Use energy conservation to...
A rope is tried to a tree limb and used by a swimmer to swim into the water below. The person starts from rest with the rope held in the horizontal position at a height of 35.0 m, the swimmer swims downward, and then let go of the rope. If the frictional force is neglected, a) what is the work done by the tensional force of the rope? b) what is the speed of the person as he let go...
Suppose the diver vaults off the springboard, leaving it with an initial speed of 3.82 m/s upward. Use energy conservation to find his speed when he strikes the water. ___ m/s Use the values from PRACTICE IT to help you work this exercise which the values are A diver of mass m drops from a board 12.0m above the water's surface, as shown in the figure. Neglect air resistance. (a) Use conservation of mechanical energy to find his speed 6.00...