OK this sounds like a stupid question but someone at the pool told me that my hand needs to be open with my fingers apart when I swim. i normally cup it which is what I thought was the best way. Today I tried my fingers together and my thumb out a little bit from the hand.
The cupped hand seemed best but what do the experts say?
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Newton's second law states "The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object," this law effects swimming in a large way. It is more easily understood as F=ma. "F" will be the force exerted by the swimmer, "m" will be the mass of the swimmer, and "a" will be the acceleration of the swimmer, using this equation you can find how much force a swimmer must exert to move through the water. Although it is not totally accurate because of the friction of the water it does explain the basic force a swimmer must exert. As you can see the swimmers mass and how fast he or she wants to go determine how much force must be exerted.
Ouch! In the case of a swimmer they start each length travelling faster than they can maintain by swimming so their is no forward acceleration involved after you leave the blocks or wall, i.e. all the force is used to overcome friction. F=ma tells you nothing about the force you have to exert except for on the blocks or pushing off the wall!
Newton's second law states "The acceleration of an object is directly proportional to the net external force acting on the object and inversely proportional to the mass of the object," this law effects swimming in a large way. It is more easily understood as F=ma. "F" will be the force exerted by the swimmer, "m" will be the mass of the swimmer, and "a" will be the acceleration of the swimmer, using this equation you can find how much force a swimmer must exert to move through the water. Although it is not totally accurate because of the friction of the water it does explain the basic force a swimmer must exert. As you can see the swimmers mass and how fast he or she wants to go determine how much force must be exerted.
Ouch! In the case of a swimmer they start each length travelling faster than they can maintain by swimming so their is no forward acceleration involved after you leave the blocks or wall, i.e. all the force is used to overcome friction. F=ma tells you nothing about the force you have to exert except for on the blocks or pushing off the wall!
