Question

can anyone help me please ​

Answer 1

Answer:

It will reach the same height if the surface is frictionless if the surface is not friction less then it will not reach the same height according to Newtown's third law of motion

Explanation:

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Answer 2

Answer:

yes it will reach the same height

Explanation:

conservation of energy so 1stbthe potential energy gets converted into kinetic energy whe it teaches at the bottom and the this kinetic energy changes into potential energy as there is no friction so no energy is lost in between the journey incase there is friction it wont reach the same height but always less then the previous height

hope it helps