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Alik [6]
2 years ago
14

A diver who has a mass of 68 kg climbs to a diving platform that is 7.5 m above the surface of a pool. How much gravitational po

tential energy does the diver have in relation to the pool’s surface?
Physics
2 answers:
noname [10]2 years ago
4 0
The answer is 4998 J.
iren [92.7K]2 years ago
4 0

Answer: 4,998 J

Explanation:

The gravitational potential energy of an object is given by

E_p=mgh

where

m is the mass of the object

g is the gravitational acceleration

h is the heigth of the object with respect to a reference point

In this problem, m=68 kg, g=9.8 m/s^2, and h=7.5 m is the heigth of the diver with respect to the surface of the pool. Therefore, the gravitational potential energy of the diver with respect to the surface of the pool is

E=mgh=(68 kg)(9.8 m/s^2)(7.5 m)=4,998 J

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Answer:

         Time - taken = 2.5 s

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Solution:

            Given:

                     speed, v = 8 m/s

                 distance, d = 20m

                     

              To Find:

                     deacceleration = ?

               

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                Now from deceleration formula

                        a =  - v/ t

                        a = - 20/ 2.5

                        a = - 8 m/s²

          Thus, the time taken and acceleration is 2.5 s and -8 m/s²

          respectively.

          Learn more about deceleration here:

                brainly.com/question/13354629

                       #SPJ4  

               

                       

             

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