A friend tells you that a rowboat is propelled forward by the force of its oars against the water. First, explain whether the statement is correct, and then identify the action and reaction forces.
2007-05-16 11:37:50 · 3 answers · asked by Ryoma Echizen 3 in Science & Mathematics ➔ Physics
No. Just the opposite. It's the force of the water on the oars that is propelling the boat forward.
Draw a free-body diagram and identify every force impingent upon the boat and it will be clear.
2007-05-16 12:16:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Your friend is half correct. The force against the water is transmitted to the fulcrum at the oar locks and this force is exhibited in the forward motion of the boat.
The action is simply the force exerted on the oar locks, the reaction is the boat moving in accordance with this force.
2007-05-16 18:45:01 · answer #2 · answered by LeAnne 7 · 0⤊ 0⤋
Yes it is correct.
As you move the oars in through water the viscosity, therefore the fluid resistance o friction is significant enough to move the boat through the water.
The force exerted by the oars is equal and opposite to the force exerted by the water on the oars, but due to the small mass of the boat relative to the water, it is the boat that moves.
2007-05-16 19:31:53 · answer #3 · answered by Mandél M 3 · 0⤊ 0⤋