Hello me im new to physics and dont know what to do

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A child sliding down a water slide starts from rest and reaches a speed of 5.00 m/s upon entering the water. To determine the final speed if the slide were twice as high, one can apply the conservation of energy principle, equating potential energy at the top to kinetic energy at the bottom. The relevant formulas for potential energy (PE) and kinetic energy (KE) are used to calculate the new final velocity. The original poster confirmed they found the answer after receiving assistance. The discussion emphasizes understanding energy conservation in physics problems.
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Starting from rest at the top, a child slides down the water slide at a swimming pool and enters the water at a final speed of 5.00 m/s. At what final speed would the child enter the water if the water slide were twice as high? Ignore friction and resistance from the air and the water lubricating the slide.

Please help ASAP if you can

Thanks very much
 
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Use energy of conservation. Potential energy at top of slide = kinetic energy at bottom. Use the formulas for PE and KE to get final velocity.
 
dw i got the answer
 
thanks tho :D
 
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