0
If a 70-kg swimmer push off a pool wall with a force of 250 N at what rate will swimmer accelerate from the wall?
Wiki User
∙ 14y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
If a 70 kg swimmer pushes off a pool wall with a force of 250 N at what rate will the swimmer accelerate from the wall?
56
Is friction useful to swimmers?
Yes, and no..Friction IS useful to swimmers, because without friction, there would be no viscosity, and without viscosity, when the swimmer jumped in the pool, they would literally fall through the water to the bottom of the pool (just like you fall through air). Worse, without friction, they could not swim - and thus could not use the water to propel themselves upward to the surface. Unless a swimmer's body is buoyant enough, they might rest at the bottom of the pool until they drown. A swimmer could jump from the pool's bottom, and hope their buoyancy lets them reach the side of the pool, or to reach something to hang on to, but they could not swim to safety..Friction is NOT useful to swimmers, because friction causes drag, and drag slows down the swimmer, and drag also forces the swimmer to expend more energy.
Can a light ray travelling in air be totally reflected when it strikes a smooth water surface if the incident angle is right?
If the light travelled from within the water and the material on the other side of the boundary was less optically dense, like air, then it could happen. The phenomenon is called total internal reflection.
How does weightlessness occur?
When a force is present to oppose that of gravity. eg > Upthrust on a body in a liquid (body in a swimming pool) Centripetal force ( orbiting satellite or space station)
What term is used to describe the flow of air or fluid around an object?
The term that is used to describe the flow of air or fluid around an object is buoyant force. An example of buoyant force is when you float on an inflatable object in the swimming pool.
If a 70-kg swimmer pushes off a pool wall with the force of 250N at which rate will the swimmer accelerate from the wall?
56
If a 70 kg swimmer pushes off a pool wall with a force of 250 N at what rate will the swimmer accelerate from the wall?
56
What force helps a swimmer to swim in a swimming pool?
Upthrust
Where can you train to be a swimmer?
a pool
Is it more difficult to swim in a shallow pool or a deep pool?
it depends if your a good swimmer then the shallow end but if a bad swimmer or nervous swimmer deep end
Who drowned Spencer in the pool?
Atcually it was Emily in the pool cause she is a swimmer and Ian did.
How many laps can a pro swimmer do in a olympic pool?
about 10
How many seconds would it take one professional swimmer to swim all sides of a pool?
it depends how fast the swimmer is
What actors and actresses appeared in Pool Shark - 2003?
The cast of Pool Shark - 2003 includes: Reuben Armstrong as Audience Peter Barns as Audience Midge Barns as Audience June Bumford as Swimmer Lea Caton as Swimmer Colin Coulter as Swimmer Sandie Cusack as Audience Katherine Cusack as Audience Ivy Edwards as Swimmer Emily Gostlin as Swimmer Marion Guy as Swimmer Andrew Hocking as Life Guard Emilie Labussiere as Audience Mill Lusk as Swimmer Adele Proctor as Swimmer Connor Ramsey as Swimmer
How does the second swimmer know when to jump in a relay swim race?
The most common way is to stand 3/4 from the front of the block and wait for the swimmer to come. When the swimmer gets to the "T" at the end of the pool the swimmer on the block dives in over the swimmer in the water.
If a pool was 3 m deep should a nonswimmer jump in?
There's two parts to this: 1) Only "jump in" a pool that is approved for diving, and only where it's deep enough that you won't be injured (by hitting the pool bottom or side). 2) If there's a shallow end, there no reason a non-swimmer couldn't wade into the pool under supervision (by a swimmer who can rescue them if they get into trouble). I wouldn't recommend a non-swimmer "jump in" the deep end of a pool even with supervision.
When was Stephanie Rice first noticed as a swimmer?
when her parents dropped her in a pool and she floated
